{"id":6725,"date":"2022-08-01T02:44:44","date_gmt":"2022-08-01T02:44:44","guid":{"rendered":"https:\/\/www.geographynotespdf.com\/?p=6725"},"modified":"2026-08-18T12:25:07","modified_gmt":"2026-08-18T06:55:07","slug":"2-internal-structure-of-the-earth","status":"publish","type":"post","link":"https:\/\/geographynotespdf.com\/cms\/2-internal-structure-of-the-earth\/","title":{"rendered":"2. Best Internal Structure of The Earth \/ \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0940 \u0906\u0902\u0924\u0930\u093f\u0915 \u0938\u0902\u0930\u091a\u0928\u093e"},"content":{"rendered":"\n\n\n
\n

Internal Structure of The Earth<\/span><\/span><\/strong><\/h2>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

(\u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0940 \u0906\u0902\u0924\u0930\u093f\u0915 \u0938\u0902\u0930\u091a\u0928\u093e)<\/span><\/strong><\/span><\/p>\n

\u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0940 \u0906\u0902\u0924\u0930\u093f\u0915 \u0938\u0902\u0930\u091a\u0928\u093e\u21d2<\/span><\/strong><\/span>\"Internal<\/a>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <\/b><\/span><\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0940 \u0906\u0902\u0924\u0930\u093f\u0915 \u0938\u0902\u0930\u091a\u0928\u093e \u0915\u094b \u0938\u092e\u091d\u0928\u0947 \u0939\u0947\u0924\u0941 \u0905\u092a\u094d\u0930\u0924\u094d\u092f\u0915\u094d\u0937 \u0938\u093e\u0927\u0928\u094b\u0902 \u092a\u0930 \u0939\u0940 \u0928\u093f\u0930\u094d\u092d\u0930 \u0930\u0939\u0928\u093e \u092a\u095c\u0924\u093e \u0939\u0948\u0964 \u092f\u0939\u0940 \u0915\u093e\u0930\u0923 \u0939\u0948 \u0915\u093f \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0940 \u0906\u0902\u0924\u0930\u093f\u0915 \u0938\u0902\u0930\u091a\u0928\u093e \u0915\u0947 \u0938\u092e\u094d\u092c\u0902\u0927 \u092e\u0947\u0902 \u0905\u0927\u093f\u0915\u0924\u0930 \u091c\u094d\u091e\u093e\u0928 \u0905\u0928\u0941\u092e\u093e\u0928 \u092a\u0930 \u0906\u0927\u093e\u0930\u093f\u0924 \u0939\u0948\u0964 \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0940 \u0906\u0902\u0924\u0930\u093f\u0915 \u0938\u0902\u0930\u091a\u0928\u093e \u0915\u094b \u0938\u092e\u091d\u0928\u0947 \u092e\u0947\u0902 \u092d\u0942\u0915\u092e\u094d\u092a\u0940\u092f \u0935\u093f\u091c\u094d\u091e\u093e\u0928 (Seismology) \u092f\u093e \u092d\u0942\u0915\u092e\u094d\u092a\u0940\u092f \u0924\u0930\u0902\u0917 \u0915\u094b \u0938\u092c\u0938\u0947 \u0938\u091f\u0940\u0915 \u0935\u0948\u091c\u094d\u091e\u093e\u0928\u093f\u0915 \u0938\u093e\u0927\u0928 \u092e\u093e\u0928\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964 \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0947 \u0906\u0902\u0924\u0930\u093f\u0915 \u0938\u0902\u0930\u091a\u0928\u093e \u0915\u0947 \u0905\u0927\u094d\u092f\u092f\u0928 \u0938\u0947 \u091c\u094d\u091e\u093e\u0924 \u0939\u094b\u0924\u093e \u0939\u0948 \u0915\u093f \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u093e \u0914\u0938\u0924 \u0918\u0928\u0924\u094d\u0935 5.5 \u0939\u0948\u0964 \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0947 \u0927\u0930\u093e\u0924\u0932 \u0938\u0947 \u0915\u0947\u0902\u0926\u094d\u0930 \u0915\u0940 \u0913\u0930 \u091c\u093e\u0928\u0947 \u092a\u0930 \u0918\u0928\u0924\u094d\u0935 \u092e\u0947\u0902 \u0932\u0917\u093e\u0924\u093e\u0930 \u092c\u095d\u094b\u0924\u0930\u0940 \u0939\u094b\u0924\u0947 \u091c\u093e\u0924\u0940 \u0939\u0948 \u0915\u094d\u092f\u094b\u0902\u0915\u093f \u090a\u092a\u0930 \u0938\u0947 \u0928\u0940\u091a\u0947 \u091c\u093e\u0928\u0947 \u092a\u0930 \u091a\u091f\u094d\u091f\u093e\u0928 \u0915\u0947 \u0926\u092c\u093e\u0935 \u090f\u0935\u0902 \u092d\u093e\u0930 \u092e\u0947\u0902 \u092c\u095d\u094b\u0924\u0930\u0940 \u0939\u094b\u0924\u0947 \u091c\u093e\u0924\u0940 \u0939\u0948\u0964<\/span><\/p>\n

\u21d2 \u0938\u093e\u092e\u093e\u0928\u094d\u092f \u0928\u093f\u092f\u092e \u0915\u0947 \u0905\u0928\u0941\u0938\u093e\u0930 \u0926\u093e\u092c \u092c\u095d\u0928\u0947 \u0938\u0947 \u0924\u093e\u092a\u092e\u093e\u0928 \u092e\u0947\u0902 \u092c\u095d\u094b\u0924\u0930\u0940 \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 \u0905\u0924\u0903 \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 32 \u092e\u0940\u0966 \u0915\u0940 \u0917\u0939\u0930\u093e\u0908 \u092a\u0930 1\u2103\u00a0 \u0924\u093e\u092a\u092e\u093e\u0928 \u092e\u0947\u0902 \u092c\u095d\u094b\u0924\u0930\u0940 \u0939\u094b\u0924\u0940 \u0939\u0948\u0964<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 \u0938\u094d\u0935\u0947\u0938 \u092e\u0939\u094b\u0926\u092f \u0928\u0947 \u092a\u0939\u0932\u0940 \u092c\u093e\u0930 \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0940 \u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u0938\u0902\u0930\u091a\u0928\u093e \u0915\u093e \u0905\u0927\u094d\u092f\u092f\u0928 \u0915\u093f\u092f\u093e\u0964 \u0909\u0928\u094d\u0939\u094b\u0902\u0928\u0947 \u092c\u0924\u093e\u092f\u093e \u0915\u093f \u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u0938\u0902\u0930\u091a\u0928\u093e \u0915\u0947 \u0906\u0927\u093e\u0930 \u092a\u0930 \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0940 \u0906\u0902\u0924\u0930\u093f\u0915 \u092d\u093e\u0917\u094b\u0902 \u0915\u094b \u0924\u0940\u0928 \u092a\u0930\u0924\u094b\u0902 \u092e\u0947\u0902 \u092c\u093e\u0901\u091f\u093e \u091c\u093e\u00a0 \u0938\u0915\u0924\u093e \u0939\u0948\u0964<\/span><\/p>\n

\"\"<\/p>\n

\u091a\u093f\u0924\u094d\u0930: \u0938\u094d\u0935\u0947\u0938 \u0915\u0947 \u0905\u0928\u0941\u0938\u093e\u0930 \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0940 \u0906\u0902\u0924\u0930\u093f\u0915 \u0938\u0902\u0930\u091a\u0928\u093e<\/strong><\/p>\n

(1) \u0938\u093f\u092f\u093e\u0932 (SIAL)\u00a0<\/b><\/span><\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0\u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u093e \u0938\u092c\u0938\u0947 \u090a\u092a\u0930\u0940 \u092a\u0930\u0924 \u0938\u093f\u0932\u093f\u0915\u0928 & \u0905\u0932\u0941\u092e\u093f\u0928\u093f\u092f\u092e \u0938\u0947 \u0928\u093f\u0930\u094d\u092e\u093f\u0924 \u0939\u0948\u0964<\/span><\/span><\/p>\n

(2) \u0938\u093f\u092e\u093e (SIMA)<\/b><\/span><\/p>\n

\u00a0 \u00a0 \u0938\u094d\u0935\u0947\u0938 \u0928\u0947 \u092e\u0927\u094d\u092f\u0935\u0930\u094d\u0924\u0940 \u092a\u0930\u0924 \u0915\u094b \u0938\u093f\u092e\u093e \u0938\u0947 \u0938\u0902\u092c\u094b\u0927\u093f\u0924 \u0915\u093f\u092f\u093e \u0939\u0948 \u0914\u0930 \u0909\u0928\u094d\u0939\u094b\u0902\u0928\u0947 \u092c\u0924\u093e\u092f\u093e \u0915\u093f \u0938\u093f\u092e\u093e \u0938\u093f\u0932\u093f\u0915\u0928 & \u092e\u0948\u0917\u094d\u0928\u0947\u0936\u093f\u092f\u092e \u0938\u0947 \u092c\u0928\u093e \u0939\u0948\u0964<\/span><\/span><\/p>\n

(3) \u0928\u093f\u092b\u0947 (NIFE)<\/b><\/span><\/p>\n

\u00a0 \u00a0 \u00a0 \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0947 \u0938\u092c\u0938\u0947 \u0906\u0902\u0924\u0930\u093f\u0915 \u092d\u093e\u0917 \u0915\u094b \u0928\u093f\u092b\u0947 \u0938\u0947 \u0938\u0902\u092c\u094b\u0927\u093f\u0924 \u0915\u093f\u092f\u093e \u0939\u0948 \u0914\u0930 \u092c\u0924\u093e\u092f\u093e \u0915\u093f \u092f\u0939 \u0928\u093f\u0915\u0947\u0932 & \u0932\u094b\u0939\u093e \u0938\u0947 \u092c\u0928\u093e \u0939\u0948\u0964<\/span><\/span><\/p>\n

\u092d\u0942\u0915\u092e\u094d\u092a\u0940\u092f \u0938\u093e\u0915\u094d\u0937\u094d\u092f\u094b\u0902 \u0915\u0947 \u0906\u0927\u093e\u0930 \u092a\u0930 \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0940 \u0906\u0902\u0924\u0930\u093f\u0915 \u0938\u0902\u0930\u091a\u0928\u093e <\/strong><\/span><\/p>\n

(Internal Structure of the Earth Based on Seismic Evidence):-<\/strong><\/span><\/p>\n

\u00a0 \u00a0 \u00a0\u092d\u0942\u0915\u092e\u094d\u092a\u0940\u092f \u0938\u093e\u0915\u094d\u0937\u094d\u092f\u094b\u0902 \u0915\u0947 \u0906\u0927\u093e\u0930 \u092a\u0930 \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0940 \u0906\u0902\u0924\u0930\u093f\u0915 \u0938\u0902\u0930\u091a\u0928\u093e \u0915\u093e \u0938\u092c\u0938\u0947 \u0905\u0927\u093f\u0915 \u0935\u0948\u091c\u094d\u091e\u093e\u0928\u093f\u0915 \u0905\u0927\u094d\u092f\u092f\u0928 \u092a\u094d\u0930\u0938\u094d\u0924\u0941\u0924 \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964 \u091c\u093f\u0938\u0915\u0947 \u0905\u0928\u0941\u0938\u093e\u0930 \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u094b \u0924\u0940\u0928 \u092a\u0930\u0924\u094b\u0902 \u092e\u0947\u0902 \u092c\u093e\u0901\u091f\u093e \u0917\u092f\u093e \u0939\u0948-<\/span><\/p>\n

1. \u092d\u0942\u092a\u0930\u094d\u092a\u091f\u0940 (Crust)<\/b><\/span><\/p>\n

2. \u092d\u0942-\u092a\u094d\u0930\u093e\u0935\u0930 (Mantle)<\/b><\/span><\/p>\n

3. \u0915\u094d\u0930\u094b\u0921 (Core)<\/b><\/span><\/p>\n

(1) \u092d\u0942\u092a\u0930\u094d\u092a\u091f\u0940 (Crust<\/span>):- <\/b><\/span><\/p>\n

\u00a0 \u00a0 \u00a0 \u092f\u0939 \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u093e \u0938\u092c\u0938\u0947 \u090a\u092a\u0930\u0940 \u090f\u0935\u0902 \u092a\u0924\u0932\u0940 \u092a\u0930\u0924 \u0939\u0948\u0964 \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0947 \u0915\u0941\u0932 \u0906\u092f\u0924\u0928 \u0915\u093e 0.5% \u0914\u0930 \u0915\u0941\u0932 \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u0915\u093e 0.2% Crust \u092e\u0947\u0902 \u0936\u093e\u092e\u093f\u0932 \u0939\u0948\u0964 \u0907\u0938\u0915\u0940 \u0914\u0938\u0924 \u092e\u094b\u091f\u093e\u0908 33 \u0915\u093f\u092e\u0940\u0966 \u0939\u0948\u0964 \u092e\u0939\u093e\u0926\u094d\u0935\u0940\u092a\u094b\u0902 \u092a\u0930 \u0907\u0938\u0915\u0940 \u0905\u0927\u093f\u0915\u0924\u092e \u092e\u094b\u091f\u093e\u0908 70 \u0915\u093f\u092e\u0940\u0966 \u0924\u0915 \u0914\u0930 \u092e\u0939\u093e\u0938\u093e\u0917\u0930\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u092e\u0947\u0902 \u0914\u0938\u0924 \u092e\u094b\u091f\u093e\u0908 5 \u0915\u093f\u092e\u0940\u0966 \u0939\u0948\u0964 \u0907\u0938\u092e\u0947\u0902 \u092a\u0930\u0924\u0926\u093e\u0930 \u091a\u091f\u094d\u091f\u093e\u0928\u094b\u0902 \u0915\u0940 \u092a\u094d\u0930\u0927\u093e\u0928\u0924\u093e \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 \u0932\u0947\u0915\u093f\u0928 \u092e\u0939\u093e\u0926\u094d\u0935\u0940\u092a\u0940\u092f \u092d\u093e\u0917\u094b\u0902 \u092e\u0947\u0902 \u092a\u0930\u0924\u0926\u093e\u0930 \u091a\u091f\u094d\u091f\u093e\u0928\u094b\u0902 \u0915\u0947 \u0928\u0940\u091a\u0947 \u0917\u094d\u0930\u0947\u0928\u093e\u0907\u091f \u091a\u091f\u094d\u091f\u093e\u0928 \u0915\u0940 \u092a\u0930\u0924 \u092e\u093f\u0932\u0924\u0940 \u0939\u0948 \u091c\u092c\u0915\u093f \u092e\u0939\u093e\u0938\u093e\u0917\u0930\u0940\u092f \u092d\u0942\u092a\u091f\u0932 \u092a\u0930 \u092c\u0948\u0938\u093e\u0932\u094d\u091f \u091a\u091f\u094d\u091f\u093e\u0928\u0947 \u092e\u093f\u0932\u0924\u0940 \u0939\u0948\u0964<\/span><\/span><\/p>\n

\u2605 \u092d\u0942\u092a\u0930\u094d\u092a\u091f\u0940 \u0915\u0940 \u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u0938\u0902\u0930\u091a\u0928\u093e \u0938\u0947 \u0938\u094d\u092a\u0937\u094d\u091f \u0939\u094b\u0924\u093e \u0939\u0948 \u0915\u093f \u0907\u0938\u092e\u0947\u0902 \u0938\u0930\u094d\u0935\u093e\u0927\u093f\u0915 \u0911\u0915\u094d\u0938\u0940\u091c\u0928 (46.80%), \u0938\u093f\u0932\u093f\u0915\u0928 (27.72%) \u0905\u0932\u094d\u092f\u0941\u092e\u0940\u0928\u093f\u092f\u092e (8.13%) \u092a\u093e\u092f\u0940 \u091c\u093e\u0924\u0940 \u0939\u0948\u0964 \u092f\u0939 \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u093e \u0935\u0939 \u092e\u0923\u094d\u0921\u0932 \u0939\u0948 \u091c\u093f\u0938\u092e\u0947\u0902 \u092a\u094d\u0930\u093e\u0925\u092e\u093f\u0915 \u0924\u0930\u0902\u0917, \u0926\u094d\u0935\u093f\u0924\u0940\u092f\u0915 \u0924\u0930\u0902\u0917, \u0938\u0924\u0939\u0940 \u0924\u0930\u0902\u0917, P*, S*, Pg & Sg \u091c\u0948\u0938\u0947 \u092d\u0942\u0915\u092e\u094d\u092a\u0940\u092f \u0924\u0930\u0902\u0917 \u091a\u0932\u093e \u0915\u0930\u0924\u0947 \u0939\u0948\u0964<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u092d\u0942\u092a\u0930\u094d\u092a\u091f\u0940 \u092d\u0940 \u0926\u094b \u092d\u093e\u0917\u094b\u0902 \u092e\u0947\u0902 \u0935\u093f\u092d\u0915\u094d\u0924 \u0939\u0948:-<\/span><\/p>\n

1. \u092e\u0939\u093e\u0938\u093e\u0917\u0930\u0940\u092f \u092d\u0942\u092a\u091f\u0932<\/b><\/span><\/p>\n

2. \u092e\u0939\u093e\u0926\u094d\u0935\u0940\u092a\u0940\u092f \u092d\u0942\u092a\u091f\u0932<\/b><\/span><\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0\u092e\u0939\u093e\u0926\u094d\u0935\u0940\u092a\u0940\u092f \u092d\u0942\u092a\u091f\u0932 \u0915\u093e \u0918\u0928\u0924\u094d\u0935 \u0915\u092e (2.75) \u0939\u0948 \u091c\u092c\u0915\u093f \u092e\u0939\u093e\u0938\u093e\u0917\u0930\u0940\u092f \u092d\u0942\u092a\u091f\u0932 \u0915\u093e \u0918\u0928\u0924\u094d\u0935 \u0905\u0927\u093f\u0915 (3.75) \u0939\u0948\u0964 \u092f\u0939\u0940 \u0915\u093e\u0930\u0923 \u0939\u0948 \u0915\u093f \u092e\u0939\u093e\u0926\u094d\u0935\u0940\u092a\u0940\u092f \u092d\u0942\u092a\u091f\u0932 \u092b\u0941\u0932\u093e\/\u0916\u0941\u0932\u093e \u0939\u0941\u0906 \u0939\u0948 \u091c\u092c\u0915\u093f \u092e\u0939\u093e\u0938\u093e\u0917\u0930\u0940\u092f \u092d\u0942\u092a\u091f\u0932 \u0927\u0901\u0938\u093e \u0939\u0941\u0906 \u0939\u0948\u0964 \u092e\u0939\u093e\u0926\u094d\u0935\u0940\u092a\u0940\u092f \u092d\u0942\u092a\u091f\u0932 \u092e\u0947\u0902 \u092d\u0940 \u0905\u0932\u0917-\u0905\u0932\u0917 \u0918\u0928\u0924\u094d\u0935 \u0915\u0940 \u091a\u091f\u094d\u091f\u093e\u0928\u0947 \u092a\u093e\u092f\u0940 \u091c\u093e\u0924\u0940 \u0939\u0948\u0964 \u091c\u0948\u0938\u0947:- \u092a\u0930\u094d\u0935\u0924\u0940\u092f \u091a\u091f\u094d\u091f\u093e\u0928\u094b\u0902 \u0915\u0947 \u0918\u0928\u0924\u094d\u0935 \u0938\u092c\u0938\u0947 \u0915\u092e \u0939\u094b\u0924\u093e \u0939\u0948\u0964 \u0907\u0938\u0938\u0947 \u0905\u0927\u093f\u0915 \u0918\u0928\u0924\u094d\u0935 \u092a\u0920\u093e\u0930\u094b\u0902 \u0915\u093e \u0914\u0930 \u092a\u0920\u093e\u0930\u094b\u0902 \u0938\u0947 \u091c\u094d\u092f\u093e\u0926\u093e \u0918\u0928\u0924\u094d\u0935 \u092e\u0948\u0926\u093e\u0928\u0940 \u091a\u091f\u094d\u091f\u093e\u0928\u094b\u0902 \u092e\u0947\u0902 \u0939\u094b\u0924\u093e \u0939\u0948\u0964<\/span><\/span><\/p>\n

(2) \u092d\u0942-\u092a\u094d\u0930\u093e\u0935\u093e\u0930 (Mantle):- <\/span><\/b><\/span><\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0\u092d\u0942-\u092a\u094d\u0930\u093e\u0935\u093e\u0930 \u0915\u0940 \u092e\u094b\u091f\u093e\u0908 \u092e\u094b\u0939\u094b \u0905\u0938\u092e\u094d\u092c\u0926\u094d\u0927\u0924\u093e \u0938\u0947 2900 KM \u0924\u0915 \u0939\u0948\u0964 \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0947 \u0915\u0941\u0932 \u0906\u092f\u0924\u0928 \u0915\u093e 83% \u0914\u0930 \u0915\u0941\u0932 \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u0915\u093e 68% \u092d\u093e\u0917 \u092d\u0942\u092a\u094d\u0930\u093e\u0935\u093e\u0930 \u092e\u0947\u0902 \u0936\u093e\u092e\u093f\u0932 \u0939\u0948\u0964 \u092f\u0939 \u0905\u0927\u093f\u0915 \u0924\u093e\u092a\u092e\u093e\u0928 \u0915\u0947 \u0915\u093e\u0930\u0923 \u092a\u093f\u0918\u0932\u0940 \u0939\u0941\u0908 \u0905\u0935\u0938\u094d\u0925\u093e (\u0926\u094d\u0930\u0935) \u0915\u0947 \u0938\u092e\u093e\u0928 \u0939\u0948\u0964 \u092d\u0942\u092a\u094d\u0930\u093e\u0935\u093e\u0930 \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u093e \u0935\u0939 \u092e\u0923\u094d\u0921\u0932 \u0939\u0948 \u091c\u093f\u0938\u092e\u0947\u0902 \u092a\u094d\u0930\u093e\u0925\u092e\u093f\u0915 \u0924\u0930\u0902\u0917\u00a0 \u0924\u094b \u0938\u0902\u091a\u0930\u093f\u0924 \u0939\u094b\u0924\u0940 \u0939\u0948 \u0932\u0947\u0915\u093f\u0928 \u0926\u094d\u0935\u093f\u0924\u0940\u092f\u0915 \u0924\u0930\u0902\u0917 \u0935\u093f\u0932\u0941\u092a\u094d\u0924 \u0939\u094b \u091c\u093e\u0924\u0940 \u0939\u0948\u0964 \u0907\u0938\u0915\u093e \u0928\u093f\u0930\u094d\u092e\u093e\u0923 \u0938\u093f\u0932\u093f\u0915\u0928 & \u092e\u0948\u0917\u094d\u0928\u0947\u0936\u093f\u092f\u092e \u091c\u0948\u0938\u0947 \u0924\u0924\u094d\u0935\u094b\u0902 \u0938\u0947 \u0939\u0941\u0906 \u0939\u0948\u0964 \u092d\u0942\u092a\u094d\u0930\u093e\u0935\u093e\u0930 \u0915\u093e \u0918\u0928\u0924\u094d\u0935 3 \u0938\u0947 5.5 \u0924\u0915 \u092e\u093e\u0928\u0940 \u091c\u093e\u0924\u0940 \u0939\u0948\u0964\u00a0<\/span><\/p>\n

\u2605 \u092d\u0942\u092a\u0930\u094d\u092a\u091f\u0940 \u0914\u0930 \u092d\u0942\u092a\u094d\u0930\u093e\u0935\u093e\u0930 \u0915\u0947 \u092c\u0940\u091a \u090f\u0915 \u0938\u0902\u0915\u094d\u0930\u092e\u0923 \u092a\u0947\u091f\u0940 \u092a\u093e\u092f\u0940 \u091c\u093e\u0924\u0940 \u0939\u0948 \u091c\u093f\u0938\u0947 \u092e\u094b\u0939\u094b\u0905\u0938\u092e\u094d\u092c\u0926\u094d\u0927\u0924\u093e (Moho Discontinuty) \u0915\u0939\u0924\u0947 \u0939\u0948\u0964<\/span><\/p>\n

\u2605 \u0915\u094d\u0930\u0938\u094d\u091f \u0914\u0930 \u092e\u0947\u0902\u091f\u0932 \u0915\u0947 \u090a\u092a\u0930\u0940 \u092d\u093e\u0917 \u0915\u094b \u092e\u093f\u0932\u093e\u0915\u0930 \u0938\u094d\u0925\u0932\u092e\u0923\u094d\u0921\u0932\/\u0932\u093f\u0925\u094b\u0938\u094d\u092b\u0947\u092f\u0930 \u0915\u0939\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964<\/span><\/p>\n

\u2605 \u0938\u094d\u0925\u0932\u092e\u0923\u094d\u0921\u0932 \u0915\u0947 \u0928\u0940\u091a\u0947 \u0935\u093e\u0932\u0947 \u092e\u0923\u094d\u0921\u0932 \u0915\u094b \u0926\u0941\u0930\u094d\u092c\u0932\u092e\u0923\u094d\u0921\u0932 (Aestheno Sphere) \u0915\u0939\u0924\u0947 \u0939\u0948\u0964 \u0939\u094b\u092e\u094d\u0938 \u0928\u0947 \u092c\u0924\u093e\u092f\u093e \u0915\u093f \u0926\u0941\u0930\u094d\u092c\u0932\u092e\u0923\u094d\u0921\u0932 \u092e\u0947\u0902 \u0939\u0940 \u0938\u0902\u0935\u0939\u0928 \u0924\u0930\u0902\u0917\u0947 \u091a\u0932\u0924\u0940 \u0939\u0948\u0964 \u092f\u0947 \u0924\u0930\u0902\u0917\u0947 \u0907\u0924\u0928\u0940 \u0936\u0915\u094d\u0924\u093f\u0936\u093e\u0932\u0940 \u0939\u094b\u0924\u0940 \u0939\u0948 \u091c\u094b \u0938\u094d\u0925\u0932\u092e\u0923\u094d\u0921\u0932 \u0915\u094b \u0924\u094b\u095c\u0928\u0947 \u090f\u0935\u0902 \u092e\u094b\u095c\u0928\u0947 \u0915\u0940 \u0915\u094d\u0937\u092e\u0924\u093e \u0930\u0916\u0924\u0940 \u0939\u0948\u0964<\/span><\/p>\n

(3) \u0915\u094d\u0930\u094b\u0921(Core)\/\u0905\u0902\u0924\u0930\u0924\u092e:- <\/span>\u00a0\u00a0<\/b><\/span><\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0\u092f\u0939 \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u093e \u0915\u0947\u0902\u0926\u094d\u0930\u0940\u092f \u092d\u093e\u0917 \u0939\u0948\u0964 \u0907\u0938\u0915\u093e \u0918\u0928\u0924\u094d\u0935 -10 \u0938\u0947 13.6 g\/cm3 \u0939\u0948\u0964 \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0947 \u0915\u0941\u0932 \u0906\u092f\u0924\u0928 \u0915\u093e 16% \u090f\u0935\u0902 \u0926\u094d\u0930\u0935\u094d\u092f\u092e\u093e\u0928 \u0915\u093e 32% \u092d\u093e\u0917 \u0915\u094d\u0930\u094b\u0921 \u092e\u0947\u0902 \u0936\u093e\u092e\u093f\u0932 \u0939\u0948\u0964 \u0915\u094d\u0930\u094b\u0921 \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u093e \u0935\u0939 \u092e\u0923\u094d\u0921\u0932 \u0939\u0948 \u091c\u0938\u092e\u0947\u0902 \u0915\u0947\u0935\u0932 \u092a\u094d\u0930\u093e\u0925\u092e\u093f\u0915 \u0924\u0930\u0902\u0917\u0947 \u0917\u0941\u091c\u0930\u0924\u0940 \u0939\u0948\u0964 \u092f\u0939 \u092e\u0923\u094d\u0921\u0932 \u0928\u093f\u0915\u0947\u0932 & \u0932\u094b\u0939\u093e \u0938\u0947 \u0928\u093f\u0930\u094d\u092e\u093f\u0924 \u0939\u0948\u0964 \u0907\u0938\u0940 \u0915\u093e\u0930\u0923 \u0938\u0947 \u092a\u0943\u0925\u094d\u0935\u0940 \u092e\u0947\u0902 \u091a\u0941\u092e\u094d\u092c\u0915\u0940\u092f \u0917\u0941\u0923 \u0939\u0948\u0964 \u0915\u094d\u0930\u094b\u0921 \u0905\u0924\u094d\u092f\u093e\u0927\u093f\u0915 \u0926\u092c\u093e\u0935 \u0915\u0947 \u0915\u093e\u0930\u0923 \u0920\u094b\u0938 \u092d\u093e\u0917 \u0915\u0947 \u0930\u0942\u092a \u092e\u0947\u0902 \u092a\u0930\u093f\u0923\u0924 \u0939\u094b \u091a\u0941\u0915\u093e \u0939\u0948\u0964 \u0915\u094d\u0930\u094b\u0921 \u0915\u0940 \u0914\u0938\u0924 \u092e\u094b\u091f\u093e\u0908 3471 KM \u0939\u0948\u0964 Mantle \u0914\u0930 Core \u0915\u0947 \u092c\u0940\u091a \u092e\u0947\u0902 \u090f\u0915 \u0938\u0902\u0915\u094d\u0930\u092e\u0923 \u092a\u0947\u091f\u0940 \u092a\u093e\u092f\u0940 \u091c\u093e\u0924\u0940 \u0939\u0948 \u091c\u093f\u0938\u0947 \u0917\u0941\u091f\u0947\u0928\u092c\u0930\u094d\u0917 \u0905\u0938\u092e\u094d\u092c\u0926\u094d\u0927\u0924\u093e \u0915\u0939\u0924\u0947 \u0939\u0948\u0902\u0964 \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0940 \u0906\u0902\u0924\u0930\u093f\u0915 \u0938\u0902\u0930\u091a\u0928\u093e \u0915\u094b \u0928\u0940\u091a\u0947 \u0915\u0947 \u091a\u093f\u0924\u094d\u0930\u094b\u0902 \u092e\u0947\u0902 \u092d\u0940 \u0926\u0947\u0916\u093e \u091c\u093e \u0938\u0915\u0924\u093e \u0939\u0948\u0964<\/span><\/p>\n

\"\"<\/span><\/p>\n

\u0928\u093f\u0937\u094d\u0915\u0930\u094d\u0937:-<\/b><\/span>\u00a0<\/b><\/span><\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u0907\u0938 \u0924\u0930\u0939 \u0909\u092a\u0930\u094d\u092f\u0941\u0915\u094d\u0924 \u0924\u0925\u094d\u092f\u094b\u0902 \u0938\u0947 \u0938\u094d\u092a\u0937\u094d\u091f \u0939\u0948 \u0915\u093f \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0940 \u0906\u0902\u0924\u0930\u093f\u0915 \u0938\u0902\u0930\u091a\u0928\u093e \u0915\u0947 \u0938\u0902\u092c\u0902\u0927 \u092e\u0947\u0902 \u092d\u0942\u0915\u092e\u094d\u092a\u0940\u092f \u0924\u0930\u0902\u0917 \u0938\u092c\u0938\u0947 \u0905\u0927\u093f\u0915 \u0935\u0948\u091c\u094d\u091e\u093e\u0928\u093f\u0915 \u0938\u093e\u0915\u094d\u0937\u094d\u092f \u092a\u094d\u0930\u0938\u094d\u0924\u0941\u0924 \u0915\u0930\u0924\u0947 \u0939\u0948\u0902\u0964<\/span><\/p>\n

\n\n\n\n
\n

MCQs\/UGC NET\/JRF Quick Revision<\/strong><\/span><\/h3>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

1. \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0940 \u0906\u0902\u0924\u0930\u093f\u0915 \u0938\u0902\u0930\u091a\u0928\u093e \u0915\u094b \u0938\u092e\u091d\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u092a\u094d\u0930\u0924\u094d\u092f\u0915\u094d\u0937 \u092a\u094d\u0930\u092e\u093e\u0923\u094b\u0902 \u0915\u0940 \u0924\u0941\u0932\u0928\u093e \u092e\u0947\u0902 \u0905\u092a\u094d\u0930\u0924\u094d\u092f\u0915\u094d\u0937 \u092a\u094d\u0930\u092e\u093e\u0923 \u0905\u0927\u093f\u0915 \u092e\u0939\u0924\u094d\u0935\u092a\u0942\u0930\u094d\u0923 \u0915\u094d\u092f\u094b\u0902 \u0939\u0948\u0902?<\/strong><\/span><\/p>\n

Why are indirect evidences more important than direct evidences for understanding Earth’s interior?<\/strong><\/span><\/p>\n

(A) \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0947 \u0915\u0947\u0902\u0926\u094d\u0930 \u0924\u0915 \u092a\u094d\u0930\u0924\u094d\u092f\u0915\u094d\u0937 \u0930\u0942\u092a \u0938\u0947 \u092a\u0939\u0941\u0901\u091a\u0928\u093e \u0938\u0902\u092d\u0935 \u0928\u0939\u0940\u0902 \u0939\u0948 \/ Direct access to Earth’s center is not possible<\/span><\/strong><\/span><\/p>\n

(B) \u0938\u092d\u0940 \u092a\u094d\u0930\u0924\u094d\u092f\u0915\u094d\u0937 \u092a\u094d\u0930\u092e\u093e\u0923 \u0917\u0932\u0924 \u0939\u0948\u0902 \/ All direct evidences are incorrect<\/span><\/strong><\/span><\/p>\n

(C) \u0915\u0947\u0935\u0932 surface rocks \u0939\u0940 \u0909\u092a\u0932\u092c\u094d\u0927 \u0939\u0948\u0902 \/ Only surface rocks are available<\/span><\/strong><\/span><\/p>\n

(D) \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0940 \u0938\u0924\u0939 \u092a\u0930 \u0915\u094b\u0908 \u0936\u0948\u0932 \u0928\u0939\u0940\u0902 \u092e\u093f\u0932\u0924\u0940 \/ No rocks are found at the surface<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

2. \u0928\u093f\u092e\u094d\u0928 \u092e\u0947\u0902 \u0938\u0947 \u0915\u094c\u0928-\u0938\u093e \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0947 \u0906\u0902\u0924\u0930\u093f\u0915 \u092d\u093e\u0917 \u0915\u093e \u0938\u092c\u0938\u0947 \u092e\u0939\u0924\u094d\u0935\u092a\u0942\u0930\u094d\u0923 \u0905\u092a\u094d\u0930\u0924\u094d\u092f\u0915\u094d\u0937 \u092a\u094d\u0930\u092e\u093e\u0923 \u0939\u0948?<\/strong><\/span><\/p>\n

Which is one of the most important indirect evidences of Earth’s interior?<\/strong><\/span><\/p>\n

(A) Seismic waves<\/span><\/strong><\/span><\/p>\n

(B) River sediments<\/span><\/strong><\/span><\/p>\n

(C) Atmospheric pressure<\/span><\/strong><\/span><\/p>\n

(D) Ocean tides<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

3. \u092d\u0942\u0915\u0902\u092a\u0940\u092f \u0924\u0930\u0902\u0917\u094b\u0902 \u0915\u0947 \u0938\u0902\u0926\u0930\u094d\u092d \u092e\u0947\u0902 \u0915\u094c\u0928-\u0938\u093e \u0915\u0925\u0928 \u0938\u0939\u0940 \u0939\u0948?<\/strong><\/span><\/p>\n

Which statement is correct regarding seismic waves?<\/strong><\/span><\/p>\n

(A) P-waves \u0915\u0947\u0935\u0932 solids \u092e\u0947\u0902 \u091a\u0932\u0924\u0940 \u0939\u0948\u0902\u0964<\/span><\/strong><\/span><\/p>\n

(B) S-waves \u0915\u0947\u0935\u0932 solids \u092e\u0947\u0902 propagate \u0915\u0930\u0924\u0940 \u0939\u0948\u0902\u0964<\/span><\/strong><\/span><\/p>\n

(C) \u0926\u094b\u0928\u094b\u0902 P \u0914\u0930 S waves \u0915\u0947\u0935\u0932 liquids \u092e\u0947\u0902 \u091a\u0932\u0924\u0940 \u0939\u0948\u0902\u0964<\/span><\/strong><\/span><\/p>\n

(D) S-waves gases \u092e\u0947\u0902 \u0938\u092c\u0938\u0947 \u0924\u0947\u091c \u091a\u0932\u0924\u0940 \u0939\u0948\u0902\u0964<\/span><\/strong><\/span><\/p>\n

Answer: (B)<\/strong><\/span><\/p>\n

4. P-wave \u0914\u0930 S-wave \u0915\u0947 \u092c\u0940\u091a \u0938\u092c\u0938\u0947 \u092e\u0939\u0924\u094d\u0935\u092a\u0942\u0930\u094d\u0923 \u0905\u0902\u0924\u0930 \u0915\u094d\u092f\u093e \u0939\u0948?<\/strong><\/span><\/p>\n

What is the most important difference between P-waves and S-waves?<\/strong><\/span><\/p>\n

(A) P-waves compressional \u0939\u094b\u0924\u0940 \u0939\u0948\u0902, \u091c\u092c\u0915\u093f S-waves shear\/transverse \u0939\u094b\u0924\u0940 \u0939\u0948\u0902\u0964<\/span><\/strong><\/span><\/p>\n

(B) P-waves \u0915\u0947\u0935\u0932 liquids \u092e\u0947\u0902 \u091a\u0932\u0924\u0940 \u0939\u0948\u0902\u0964<\/span><\/strong><\/span><\/p>\n

(C) S-waves solids \u0914\u0930 liquids \u0926\u094b\u0928\u094b\u0902 \u092e\u0947\u0902 \u0938\u092e\u093e\u0928 \u0930\u0942\u092a \u0938\u0947 \u091a\u0932\u0924\u0940 \u0939\u0948\u0902\u0964<\/span><\/strong><\/span><\/p>\n

(D) \u0926\u094b\u0928\u094b\u0902 \u0915\u0940 \u092a\u094d\u0930\u0915\u0943\u0924\u093f \u092c\u093f\u0932\u094d\u0915\u0941\u0932 \u0938\u092e\u093e\u0928 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

5. \u092f\u0926\u093f \u0915\u093f\u0938\u0940 \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0947 \u0906\u0902\u0924\u0930\u093f\u0915 layer \u092e\u0947\u0902 S-waves \u092a\u094d\u0930\u0935\u0947\u0936 \u0928\u0939\u0940\u0902 \u0915\u0930\u0924\u0940 \u0939\u0948\u0902, \u0924\u094b \u0907\u0938\u0938\u0947 \u0915\u094d\u092f\u093e \u0938\u0902\u0915\u0947\u0924 \u092e\u093f\u0932\u0924\u093e \u0939\u0948?<\/strong><\/span><\/p>\n

If S-waves do not pass through a particular layer of Earth, what does this indicate?<\/strong><\/span><\/p>\n

(A) \u0935\u0939 layer \u092a\u0942\u0930\u094d\u0923\u0924\u0903 solid \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(B) \u0935\u0939 layer liquid \u092f\u093e shear waves \u0915\u094b support \u0928 \u0915\u0930\u0928\u0947 \u0935\u093e\u0932\u0940 \u0905\u0935\u0938\u094d\u0925\u093e \u092e\u0947\u0902 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(C) \u0935\u0939\u093e\u0901 pressure \u0936\u0942\u0928\u094d\u092f \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(D) \u0935\u0939\u093e\u0901 \u0915\u094b\u0908 \u092a\u0926\u093e\u0930\u094d\u0925 \u0928\u0939\u0940\u0902 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

Answer: (B)<\/strong><\/span><\/p>\n

6. \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0947 \u092c\u093e\u0939\u094d\u092f \u0915\u094d\u0930\u094b\u0921 (Outer Core) \u0915\u0947 liquid \u0939\u094b\u0928\u0947 \u0915\u093e \u092a\u094d\u0930\u092e\u0941\u0916 \u092d\u0942\u0915\u0902\u092a\u0940\u092f \u092a\u094d\u0930\u092e\u093e\u0923 \u0915\u094d\u092f\u093e \u0939\u0948?<\/strong><\/span><\/p>\n

What is the major seismic evidence for the liquid nature of Earth’s outer core?<\/strong><\/span><\/p>\n

(A) S-waves \u0915\u093e outer core \u0938\u0947 \u0939\u094b\u0915\u0930 \u0928 \u0917\u0941\u091c\u0930\u0928\u093e<\/span><\/strong><\/span><\/p>\n

(B) P-waves \u0915\u093e mantle \u092e\u0947\u0902 \u0928 \u091c\u093e\u0928\u093e<\/span><\/strong><\/span><\/p>\n

(C) Surface waves \u0915\u093e \u0938\u092e\u093e\u092a\u094d\u0924 \u0939\u094b\u0928\u093e<\/span><\/strong><\/span><\/p>\n

(D) \u0915\u0947\u0935\u0932 gravity anomalies<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

7. \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0947 \u0906\u0902\u0924\u0930\u093f\u0915 \u0915\u094d\u0930\u094b\u0921 (Inner Core) \u0915\u0947 solid \u0939\u094b\u0928\u0947 \u0915\u0947 \u0938\u092e\u0930\u094d\u0925\u0928 \u092e\u0947\u0902 \u0915\u094c\u0928-\u0938\u093e \u092a\u094d\u0930\u092e\u093e\u0923 \u092e\u0939\u0924\u094d\u0935\u092a\u0942\u0930\u094d\u0923 \u0939\u0948?<\/strong><\/span><\/p>\n

Which evidence supports the solid nature of Earth’s inner core?<\/strong><\/span><\/p>\n

(A) Inner core \u092e\u0947\u0902 S-wave-related behavior \u0914\u0930 seismic-wave observations<\/span><\/strong><\/span><\/p>\n

(B) Ocean currents<\/span><\/strong><\/span><\/p>\n

(C) Atmospheric circulation<\/span><\/strong><\/span><\/p>\n

(D) Surface temperature<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

8. \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0940 \u0906\u0902\u0924\u0930\u093f\u0915 \u0938\u0902\u0930\u091a\u0928\u093e \u0915\u0947 \u0938\u0902\u0926\u0930\u094d\u092d \u092e\u0947\u0902 Mohorovi\u010di\u0107 Discontinuity (Moho) \u0915\u093f\u0938\u0947 \u0905\u0932\u0917 \u0915\u0930\u0924\u0940 \u0939\u0948?<\/span><\/strong><\/span><\/p>\n

What does the Mohorovi\u010di\u0107 Discontinuity (Moho) separate?<\/strong><\/span><\/p>\n

(A) Crust \u0914\u0930 mantle<\/span><\/strong><\/span><\/p>\n

(B) Mantle \u0914\u0930 outer core<\/span><\/strong><\/span><\/p>\n

(C) Outer core \u0914\u0930 inner core<\/span><\/strong><\/span><\/p>\n

(D) Lithosphere \u0914\u0930 atmosphere<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

9. Gutenberg Discontinuity \u0915\u093f\u0938\u0915\u0947 \u092c\u0940\u091a \u0938\u094d\u0925\u093f\u0924 \u0939\u0948?<\/strong><\/span><\/p>\n

The Gutenberg Discontinuity occurs between:<\/strong><\/span><\/p>\n

(A) Crust \u0914\u0930 mantle<\/span><\/strong><\/span><\/p>\n

(B) Mantle \u0914\u0930 outer core<\/span><\/strong><\/span><\/p>\n

(C) Outer core \u0914\u0930 inner core<\/span><\/strong><\/span><\/p>\n

(D) Lithosphere \u0914\u0930 asthenosphere<\/span><\/strong><\/span><\/p>\n

Answer: (B)<\/strong><\/span><\/p>\n

10. Lehmann Discontinuity \u092e\u0941\u0916\u094d\u092f\u0924\u0903 \u0915\u093f\u0938\u0938\u0947 \u0938\u0902\u092c\u0902\u0927\u093f\u0924 \u0939\u0948?<\/strong><\/span><\/p>\n

Lehmann Discontinuity is mainly associated with:<\/strong><\/span><\/p>\n

(A) Crust\u2013mantle boundary<\/span><\/strong><\/span><\/p>\n

(B) Mantle\u2013outer core boundary<\/span><\/strong><\/span><\/p>\n

(C) Outer core\u2013inner core boundary<\/span><\/strong><\/span><\/p>\n

(D) Lithosphere\u2013asthenosphere boundary<\/span><\/strong><\/span><\/p>\n

Answer: (C)<\/strong><\/span><\/p>\n

11. \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0940 \u0914\u0938\u0924 \u0924\u094d\u0930\u093f\u091c\u094d\u092f\u093e \u0932\u0917\u092d\u0917 \u0915\u093f\u0924\u0928\u0940 \u0939\u0948?<\/strong><\/span><\/p>\n

What is the approximate mean radius of the Earth?<\/strong><\/span><\/p>\n

(A) 3,371 km<\/span><\/strong><\/span><\/p>\n

(B) 5,371 km<\/span><\/strong><\/span><\/p>\n

(C) 6,371 km<\/span><\/strong><\/span><\/p>\n

(D) 8,371 km<\/span><\/strong><\/span><\/p>\n

Answer: (C)<\/strong><\/span><\/p>\n

12. \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0940 \u0906\u0902\u0924\u0930\u093f\u0915 \u0938\u0902\u0930\u091a\u0928\u093e \u0915\u094b \u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u0906\u0927\u093e\u0930 \u092a\u0930 \u092e\u0941\u0916\u094d\u092f\u0924\u0903 \u0915\u093f\u0928 layers \u092e\u0947\u0902 \u0935\u093f\u092d\u093e\u091c\u093f\u0924 \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948?<\/strong><\/span><\/p>\n

On a compositional basis, Earth is mainly divided into which layers?<\/strong><\/span><\/p>\n

(A) Sial, Sima \u0914\u0930 Nife<\/span><\/strong><\/span><\/p>\n

(B) Lithosphere, Atmosphere \u0914\u0930 Hydrosphere<\/span><\/strong><\/span><\/p>\n

(C) Troposphere, Stratosphere \u0914\u0930 Mesosphere<\/span><\/strong><\/span><\/p>\n

(D) Ocean, Continent \u0914\u0930 Island<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

13. \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0940 \u0906\u0902\u0924\u0930\u093f\u0915 \u0938\u0902\u0930\u091a\u0928\u093e \u0915\u0947 mechanical\/rheological classification \u092e\u0947\u0902 \u0915\u094c\u0928-\u0938\u093e \u0938\u092e\u0942\u0939 \u0905\u0927\u093f\u0915 \u0909\u092a\u092f\u0941\u0915\u094d\u0924 \u0939\u0948?<\/strong><\/span><\/p>\n

Which is more appropriate in the mechanical\/rheological classification of Earth’s interior?<\/strong><\/span><\/p>\n

(A) Lithosphere, Asthenosphere, Mesosphere, Outer Core, Inner Core<\/span><\/strong><\/span><\/p>\n

(B) Crust, River, Ocean, Atmosphere<\/span><\/strong><\/span><\/p>\n

(C) Mantle, Ocean, Glacier, Soil<\/span><\/strong><\/span><\/p>\n

(D) Core, Troposphere, Biosphere, Hydrosphere<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

14. Lithosphere \u0915\u0940 \u0938\u092c\u0938\u0947 \u0909\u092a\u092f\u0941\u0915\u094d\u0924 \u0935\u093f\u0936\u0947\u0937\u0924\u093e \u0915\u094d\u092f\u093e \u0939\u0948?<\/strong><\/span><\/p>\n

What is the most appropriate characteristic of the lithosphere<\/span>?<\/span><\/strong><\/span><\/p>\n

(A) \u092f\u0939 \u092a\u0942\u0930\u0940 \u0924\u0930\u0939 molten layer \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(B) \u092f\u0939 \u0915\u0947\u0935\u0932 liquid core \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(C) \u092f\u0939 \u0915\u0947\u0935\u0932 oceanic crust \u0938\u0947 \u092c\u0928\u0940 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(D) \u092f\u0939 rigid outer shell \u0939\u0948 \u091c\u093f\u0938\u092e\u0947\u0902 crust \u0914\u0930 uppermost mantle \u0936\u093e\u092e\u093f\u0932 \u0939\u094b\u0924\u0947 \u0939\u0948\u0902\u0964<\/span><\/strong><\/span><\/p>\n

Answer: (D)<\/strong><\/span><\/p>\n

15. Asthenosphere \u0915\u0947 \u0938\u0902\u0926\u0930\u094d\u092d \u092e\u0947\u0902 \u0915\u094c\u0928-\u0938\u093e \u0915\u0925\u0928 \u0905\u0927\u093f\u0915 \u0909\u092a\u092f\u0941\u0915\u094d\u0924 \u0939\u0948?<\/strong><\/span><\/p>\n

Which statement is most appropriate regarding the asthenosphere?<\/strong><\/span><\/p>\n

(A) \u092f\u0939 relatively weak\/ductile zone \u0939\u0948 \u091c\u094b lithosphere \u0915\u0947 \u0928\u0940\u091a\u0947 \u0938\u094d\u0925\u093f\u0924 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(B) \u092f\u0939 Earth’s inner core \u0915\u093e \u0926\u0942\u0938\u0930\u093e \u0928\u093e\u092e \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(C) \u092f\u0939 atmosphere \u0915\u0940 \u0938\u092c\u0938\u0947 \u0928\u093f\u091a\u0932\u0940 layer \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(D) \u092f\u0939 \u092a\u0942\u0930\u094d\u0923\u0924\u0903 rigid zone \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

16. Plate tectonics \u092e\u0947\u0902 Asthenosphere \u0915\u093e \u092e\u0939\u0924\u094d\u0935 \u092e\u0941\u0916\u094d\u092f\u0924\u0903 \u0915\u093f\u0938 \u0915\u093e\u0930\u0923 \u0939\u0948?<\/strong><\/span><\/p>\n

Why is the asthenosphere important in plate tectonics?<\/strong><\/span><\/p>\n

(A) \u0907\u0938\u0915\u0940 relative ductility lithospheric plates \u0915\u0947 movement \u0915\u094b facilitate \u0915\u0930\u0924\u0940 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(B) \u092f\u0939 \u092a\u0942\u0930\u0940 \u0924\u0930\u0939 solid \u0914\u0930 immobile \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(C) \u092f\u0939 Earth’s magnetic field \u0915\u094b directly generate \u0915\u0930\u0924\u0940 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(D) \u092f\u0939 \u0915\u0947\u0935\u0932 oceanic water store \u0915\u0930\u0924\u0940 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

17. Continental crust \u0914\u0930 oceanic crust \u0915\u0947 \u092c\u0940\u091a \u0915\u094c\u0928-\u0938\u093e \u0905\u0902\u0924\u0930 \u0938\u0939\u0940 \u0939\u0948?<\/strong><\/span><\/p>\n

Which difference between continental and oceanic crust is correct?<\/strong><\/span><\/p>\n

(A) Oceanic crust \u0938\u093e\u092e\u093e\u0928\u094d\u092f\u0924\u0903 thicker \u0914\u0930 less dense \u0939\u094b\u0924\u0940 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(B) \u0926\u094b\u0928\u094b\u0902 \u0915\u0940 thickness \u0914\u0930 density \u092c\u093f\u0932\u094d\u0915\u0941\u0932 \u0938\u092e\u093e\u0928 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(C) Continental crust \u0938\u093e\u092e\u093e\u0928\u094d\u092f\u0924\u0903 thicker \u0914\u0930 less dense \u0939\u094b\u0924\u0940 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(D) Continental crust \u0939\u092e\u0947\u0936\u093e basaltic \u0939\u094b\u0924\u0940 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

Answer: (C)<\/strong><\/span><\/p>\n

18. Oceanic crust \u0915\u093e \u092a\u094d\u0930\u092e\u0941\u0916 compositional association \u0915\u093f\u0938\u0938\u0947 \u0939\u0948?<\/strong><\/span><\/p>\n

Oceanic crust is primarily associated compositionally with:<\/strong><\/span><\/p>\n

(A) Basaltic rocks<\/span><\/strong><\/span><\/p>\n

(B) Granitic rocks only<\/span><\/strong><\/span><\/p>\n

(C) Limestone only<\/span><\/strong><\/span><\/p>\n

(D) Coal<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

19. Continental crust \u0915\u093e \u0938\u093e\u092e\u093e\u0928\u094d\u092f\u0924\u0903 \u0915\u094c\u0928-\u0938\u093e rock association \u0905\u0927\u093f\u0915 \u092a\u094d\u0930\u0938\u093f\u0926\u094d\u0927 \u0939\u0948?<\/strong><\/span><\/p>\n

Which rock association is commonly associated with continental crust?<\/strong><\/span><\/p>\n

(A) \u0915\u0947\u0935\u0932 basaltic composition<\/span><\/strong><\/span><\/p>\n

(B) Granitic\/felsic composition<\/span><\/strong><\/span><\/p>\n

(C) \u0915\u0947\u0935\u0932 ultramafic composition<\/span><\/strong><\/span><\/p>\n

(D) \u0915\u0947\u0935\u0932 metallic composition<\/span><\/strong><\/span><\/p>\n

Answer: (B)<\/strong><\/span><\/p>\n

20. \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0940 \u0938\u092c\u0938\u0947 \u092e\u094b\u091f\u0940 \u0906\u0902\u0924\u0930\u093f\u0915 layer \u0915\u094c\u0928-\u0938\u0940 \u0939\u0948?<\/strong><\/span><\/p>\n

Which is the thickest major compositional layer of Earth?<\/strong><\/span><\/p>\n

(A) Crust<\/span><\/strong><\/span><\/p>\n

(B) Mantle<\/span><\/strong><\/span><\/p>\n

(C) Outer Core<\/span><\/strong><\/span><\/p>\n

(D) Inner Core<\/span><\/strong><\/span><\/p>\n

Answer: (B)<\/strong><\/span><\/p>\n

21. Mantle \u0915\u0940 \u092a\u094d\u0930\u092e\u0941\u0916 mineralogical composition \u092e\u0947\u0902 \u0915\u094c\u0928-\u0938\u093e \u0924\u0924\u094d\u0935 \u0938\u092e\u0942\u0939 \u0905\u0927\u093f\u0915 \u092e\u0939\u0924\u094d\u0935\u092a\u0942\u0930\u094d\u0923 \u0939\u0948?<\/strong><\/span><\/p>\n

Which elemental group is particularly important in the mantle’s composition?<\/strong><\/span><\/p>\n

(A) Magnesium \u0914\u0930 iron-rich silicate minerals<\/span><\/strong><\/span><\/p>\n

(B) \u0915\u0947\u0935\u0932 gold \u0914\u0930 silver<\/span><\/strong><\/span><\/p>\n

(C) \u0915\u0947\u0935\u0932 carbon<\/span><\/strong><\/span><\/p>\n

(D) \u0915\u0947\u0935\u0932 sodium chloride<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

22. Core \u0915\u0940 composition \u0915\u0947 \u0938\u0902\u0926\u0930\u094d\u092d \u092e\u0947\u0902 \u0915\u094c\u0928-\u0938\u093e \u0915\u0925\u0928 \u0905\u0927\u093f\u0915 \u0938\u094d\u0935\u0940\u0915\u093e\u0930\u094d\u092f \u0939\u0948?<\/strong><\/span><\/p>\n

Which statement is more acceptable regarding the composition of the core?<\/strong><\/span><\/p>\n

(A) Iron \u0914\u0930 nickel \u0938\u0939\u093f\u0924 metallic elements \u0915\u093e \u092a\u094d\u0930\u092e\u0941\u0916 \u092f\u094b\u0917\u0926\u093e\u0928 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(B) \u092f\u0939 \u0915\u0947\u0935\u0932 silicate rocks \u0938\u0947 \u092c\u0928\u093e \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(C) \u092f\u0939 \u0915\u0947\u0935\u0932 water \u0938\u0947 \u092c\u0928\u093e \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(D) \u0907\u0938\u092e\u0947\u0902 \u0915\u094b\u0908 metallic element \u0928\u0939\u0940\u0902 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

23. \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0947 \u0915\u0947\u0902\u0926\u094d\u0930 \u0915\u0940 \u0913\u0930 density \u092c\u0922\u093c\u0928\u0947 \u0915\u093e \u092e\u0941\u0916\u094d\u092f \u0915\u093e\u0930\u0923 \u0915\u094d\u092f\u093e \u0939\u0948?<\/strong><\/span><\/p>\n

What is a major reason for increasing density toward Earth’s center?<\/strong><\/span><\/p>\n

(A) Increasing pressure \u0914\u0930 denser materials \u0915\u093e concentration<\/span><\/strong><\/span><\/p>\n

(B) Gravity \u0915\u093e \u0938\u092e\u093e\u092a\u094d\u0924 \u0939\u094b\u0928\u093e<\/span><\/strong><\/span><\/p>\n

(C) Temperature \u0915\u093e \u0939\u092e\u0947\u0936\u093e \u0915\u092e \u0939\u094b\u0928\u093e<\/span><\/strong><\/span><\/p>\n

(D) Water content \u0915\u093e \u0905\u0924\u094d\u092f\u0927\u093f\u0915 \u092c\u0922\u093c\u0928\u093e<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

24. \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0947 \u0906\u0902\u0924\u0930\u093f\u0915 \u092d\u093e\u0917 \u092e\u0947\u0902 pressure \u0915\u0947 \u092c\u093e\u0930\u0947 \u092e\u0947\u0902 \u0915\u094c\u0928-\u0938\u093e \u0915\u0925\u0928 \u0938\u0939\u0940 \u0939\u0948?<\/strong><\/span><\/p>\n

Which statement is correct about pressure inside Earth?<\/strong><\/span><\/p>\n

(A) Depth \u0915\u0947 \u0938\u093e\u0925 pressure \u0939\u092e\u0947\u0936\u093e \u0918\u091f\u0924\u093e \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(B) Center \u092a\u0930 pressure \u0936\u0942\u0928\u094d\u092f \u0939\u094b\u0924\u093e \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(C) \u0938\u093e\u092e\u093e\u0928\u094d\u092f\u0924\u0903 depth \u0915\u0947 \u0938\u093e\u0925 pressure \u092c\u0922\u093c\u0924\u093e \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(D) Pressure \u0915\u0947\u0935\u0932 crust \u092e\u0947\u0902 \u092a\u093e\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

Answer: (C)<\/strong><\/span><\/p>\n

25. \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0947 \u0905\u0902\u0926\u0930 \u0924\u093e\u092a\u092e\u093e\u0928 \u0915\u0947 \u0938\u0902\u092c\u0902\u0927 \u092e\u0947\u0902 \u0938\u093e\u092e\u093e\u0928\u094d\u092f \u092a\u094d\u0930\u0935\u0943\u0924\u094d\u0924\u093f \u0915\u094d\u092f\u093e \u0939\u0948?<\/strong><\/span><\/p>\n

What is the general trend of temperature inside Earth?<\/strong><\/span><\/p>\n

(A) Depth \u0915\u0947 \u0938\u093e\u0925 \u0938\u093e\u092e\u093e\u0928\u094d\u092f\u0924\u0903 \u0924\u093e\u092a\u092e\u093e\u0928 \u092c\u0922\u093c\u0924\u093e \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(B) Depth \u0915\u0947 \u0938\u093e\u0925 \u0924\u093e\u092a\u092e\u093e\u0928 \u0939\u092e\u0947\u0936\u093e \u0918\u091f\u0924\u093e \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(C) \u092a\u0942\u0930\u0947 Earth \u092e\u0947\u0902 temperature \u0938\u092e\u093e\u0928 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(D) Core \u0915\u093e \u0924\u093e\u092a\u092e\u093e\u0928 surface \u0938\u0947 \u0915\u092e \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

26. Geothermal gradient \u0915\u093e \u0905\u0930\u094d\u0925 \u0915\u094d\u092f\u093e \u0939\u0948?<\/strong><\/span><\/p>\n

What is meant by geothermal gradient?<\/strong><\/span><\/p>\n

(A) Depth \u0915\u0947 \u0938\u093e\u0925 temperature \u092e\u0947\u0902 \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u0928 \u0915\u0940 \u0926\u0930<\/span><\/strong><\/span><\/p>\n

(B) Latitude \u0915\u0947 \u0938\u093e\u0925 rainfall \u092e\u0947\u0902 \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u0928<\/span><\/strong><\/span><\/p>\n

(C) Longitude \u0915\u0947 \u0938\u093e\u0925 pressure \u0915\u093e \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u0928<\/span><\/strong><\/span><\/p>\n

(D) Surface \u092a\u0930 gravity \u0915\u093e absolute value<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

27. \u0928\u093f\u092e\u094d\u0928 \u092e\u0947\u0902 \u0938\u0947 \u0915\u094c\u0928-\u0938\u093e \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0947 \u0906\u0902\u0924\u0930\u093f\u0915 \u092d\u093e\u0917 \u0915\u0940 \u091c\u093e\u0928\u0915\u093e\u0930\u0940 \u0915\u093e \u0905\u092a\u094d\u0930\u0924\u094d\u092f\u0915\u094d\u0937 \u0938\u094d\u0930\u094b\u0924 \u0928\u0939\u0940\u0902 \u0939\u0948?<\/strong><\/span><\/p>\n

Which is NOT an indirect source of information about Earth’s interior?<\/strong><\/span><\/p>\n

(A) Seismic waves<\/span><\/strong><\/span><\/p>\n

(B) Gravity anomalies<\/span><\/strong><\/span><\/p>\n

(C) Magnetic field<\/span><\/strong><\/span><\/p>\n

(D) Deep borehole observations<\/span><\/strong><\/span><\/p>\n

Answer: (D)<\/strong><\/span><\/p>\n

28. Gravity anomalies \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0947 \u0906\u0902\u0924\u0930\u093f\u0915 \u092d\u093e\u0917 \u0915\u0947 \u092c\u093e\u0930\u0947 \u092e\u0947\u0902 \u0915\u094d\u092f\u093e \u0938\u0902\u0915\u0947\u0924 \u0926\u0947 \u0938\u0915\u0924\u0940 \u0939\u0948\u0902?<\/strong><\/span><\/p>\n

What can gravity anomalies indicate about Earth’s interior?<\/strong><\/span><\/p>\n

(A) Subsurface density variations<\/span><\/strong><\/span><\/p>\n

(B) \u0915\u0947\u0935\u0932 atmospheric humidity<\/span><\/strong><\/span><\/p>\n

(C) \u0915\u0947\u0935\u0932 ocean salinity<\/span><\/strong><\/span><\/p>\n

(D) \u0915\u0947\u0935\u0932 rainfall distribution<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

29. Earth’s magnetic field \u0915\u093e \u0905\u0938\u094d\u0924\u093f\u0924\u094d\u0935 \u0915\u093f\u0938 \u092a\u094d\u0930\u0915\u093e\u0930 \u0915\u0947 internal process \u0938\u0947 \u0935\u093f\u0936\u0947\u0937 \u0930\u0942\u092a \u0938\u0947 \u091c\u0941\u0921\u093c\u093e \u0939\u0948?<\/strong><\/span><\/p>\n

Earth’s magnetic field is particularly associated with which internal process?<\/strong><\/span><\/p>\n

(A) Crust \u092e\u0947\u0902 rainfall<\/span><\/strong><\/span><\/p>\n

(B) Outer core \u092e\u0947\u0902 electrically conducting fluid \u0915\u0940 motion<\/span><\/strong><\/span><\/p>\n

(C) Mantle \u092e\u0947\u0902 \u0915\u0947\u0935\u0932 solidification<\/span><\/strong><\/span><\/p>\n

(D) Atmosphere \u092e\u0947\u0902 cloud formation<\/span><\/strong><\/span><\/p>\n

Answer: (B)<\/strong><\/span><\/p>\n

30. Geodynamo theory \u0915\u0947 \u0905\u0928\u0941\u0938\u093e\u0930 Earth’s magnetic field \u092e\u0941\u0916\u094d\u092f\u0924\u0903 \u0915\u093f\u0938\u0938\u0947 \u0938\u0902\u092c\u0902\u0927\u093f\u0924 \u0939\u0948?<\/strong><\/span><\/p>\n

According to the geodynamo theory, Earth’s magnetic field is mainly related to:<\/strong><\/span><\/p>\n

(A) Electrically conducting fluid motion in the outer core<\/span><\/strong><\/span><\/p>\n

(B) \u0915\u0947\u0935\u0932 crustal weathering<\/span><\/strong><\/span><\/p>\n

(C) \u0915\u0947\u0935\u0932 ocean currents<\/span><\/strong><\/span><\/p>\n

(D) \u0915\u0947\u0935\u0932 atmospheric circulation<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

31. \u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u0915\u0925\u0928\u094b\u0902 \u092a\u0930 \u0935\u093f\u091a\u093e\u0930 \u0915\u0940\u091c\u093f\u090f:<\/strong><\/span><\/p>\n

1. P-waves solids \u0914\u0930 liquids \u0926\u094b\u0928\u094b\u0902 \u0938\u0947 \u0917\u0941\u091c\u0930 \u0938\u0915\u0924\u0940 \u0939\u0948\u0902\u0964<\/span><\/strong><\/span><\/p>\n

2. S-waves liquids \u0938\u0947 \u0928\u0939\u0940\u0902 \u0917\u0941\u091c\u0930\u0924\u0940 \u0939\u0948\u0902\u0964<\/span><\/strong><\/span><\/p>\n

3. P-waves, S-waves \u0915\u0940 \u0924\u0941\u0932\u0928\u093e \u092e\u0947\u0902 generally faster \u0939\u094b\u0924\u0940 \u0939\u0948\u0902\u0964<\/span><\/strong><\/span><\/p>\n

\u0938\u0939\u0940 \u0935\u093f\u0915\u0932\u094d\u092a \u091a\u0941\u0928\u093f\u090f:<\/span><\/strong><\/span><\/p>\n

(A) \u0915\u0947\u0935\u0932 1<\/span><\/strong><\/span><\/p>\n

(B) 1 \u0914\u0930 2<\/span><\/strong><\/span><\/p>\n

(C) 2 \u0914\u0930 3<\/span><\/strong><\/span><\/p>\n

(D) 1, 2 \u0914\u0930 3<\/span><\/strong><\/span><\/p>\n

Answer: (D)<\/strong><\/span><\/p>\n

32. \u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0938\u0947 \u0915\u094c\u0928-\u0938\u0947 \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0947 \u0906\u0902\u0924\u0930\u093f\u0915 \u092d\u093e\u0917 \u0915\u0947 \u0905\u0927\u094d\u092f\u092f\u0928 \u0915\u0947 indirect evidences \u0939\u0948\u0902?<\/strong><\/span><\/p>\n

1. Seismic waves<\/span><\/strong><\/span><\/p>\n

2. Gravity<\/span><\/strong><\/span><\/p>\n

3. Geomagnetism<\/span><\/strong><\/span><\/p>\n

4. Meteorites<\/span><\/strong><\/span><\/p>\n

(A) \u0915\u0947\u0935\u0932 1 \u0914\u0930 2<\/span><\/strong><\/span><\/p>\n

(B) 1, 2 \u0914\u0930 3<\/span><\/strong><\/span><\/p>\n

(C) 2, 3 \u0914\u0930 4<\/span><\/strong><\/span><\/p>\n

(D) 1, 2, 3 \u0914\u0930 4<\/span><\/strong><\/span><\/p>\n

Answer: (D)<\/strong><\/span><\/p>\n

33. \u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u0938\u0947 \u0915\u094c\u0928-\u0938\u0947 \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0940 compositional layers \u0939\u0948\u0902?<\/strong><\/span><\/p>\n

1. Crust<\/span><\/strong><\/span><\/p>\n

2. Mantle<\/span><\/strong><\/span><\/p>\n

3. Core<\/span><\/strong><\/span><\/p>\n

4. Asthenosphere<\/span><\/strong><\/span><\/p>\n

(A) \u0915\u0947\u0935\u0932 1 \u0914\u0930 2<\/span><\/strong><\/span><\/p>\n

(B) 1, 2 \u0914\u0930 3<\/span><\/strong><\/span><\/p>\n

(C) 2, 3 \u0914\u0930 4<\/span><\/strong><\/span><\/p>\n

(D) 1, 2, 3 \u0914\u0930 4<\/span><\/strong><\/span><\/p>\n

Answer: (B)<\/strong><\/span><\/p>\n

34. Assertion (A): S-waves outer core \u0938\u0947 \u0939\u094b\u0915\u0930 \u0928\u0939\u0940\u0902 \u0917\u0941\u091c\u0930\u0924\u0940 \u0939\u0948\u0902\u0964<\/span><\/strong><\/span><\/p>\n

Reason (R): S-waves \u0915\u094b propagate \u0915\u0930\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f shear strength \u0935\u093e\u0932\u093e medium \u091a\u093e\u0939\u093f\u090f, \u091c\u092c\u0915\u093f outer core predominantly liquid \u0939\u0948\u0964<\/strong><\/span><\/p>\n

(A) A \u0914\u0930 R \u0926\u094b\u0928\u094b\u0902 \u0938\u0939\u0940 \u0939\u0948\u0902 \u0924\u0925\u093e R, A \u0915\u0940 \u0938\u0939\u0940 \u0935\u094d\u092f\u093e\u0916\u094d\u092f\u093e \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(B) A \u0914\u0930 R \u0926\u094b\u0928\u094b\u0902 \u0938\u0939\u0940 \u0939\u0948\u0902, \u0932\u0947\u0915\u093f\u0928 R \u0938\u0939\u0940 \u0935\u094d\u092f\u093e\u0916\u094d\u092f\u093e \u0928\u0939\u0940\u0902 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(C) A \u0938\u0939\u0940 \u0939\u0948, R \u0917\u0932\u0924 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(D) A \u0917\u0932\u0924 \u0939\u0948, R \u0938\u0939\u0940 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

35. Assertion (A): \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0947 center \u0915\u0940 \u0913\u0930 density \u0938\u093e\u092e\u093e\u0928\u094d\u092f\u0924\u0903 \u092c\u0922\u093c\u0924\u0940 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

Reason (R): Increasing pressure \u0924\u0925\u093e denser metallic materials \u0915\u093e concentration interior \u092e\u0947\u0902 \u0905\u0927\u093f\u0915 \u0939\u0948\u0964<\/strong><\/span><\/p>\n

(A) A \u0914\u0930 R \u0926\u094b\u0928\u094b\u0902 \u0938\u0939\u0940 \u0939\u0948\u0902 \u0924\u0925\u093e R, A \u0915\u0940 \u0938\u0939\u0940 \u0935\u094d\u092f\u093e\u0916\u094d\u092f\u093e \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(B) A \u0914\u0930 R \u0926\u094b\u0928\u094b\u0902 \u0938\u0939\u0940 \u0939\u0948\u0902, \u0932\u0947\u0915\u093f\u0928 R \u0938\u0939\u0940 \u0935\u094d\u092f\u093e\u0916\u094d\u092f\u093e \u0928\u0939\u0940\u0902 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(C) A \u0938\u0939\u0940 \u0939\u0948, R \u0917\u0932\u0924 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(D) A \u0917\u0932\u0924 \u0939\u0948, R \u0938\u0939\u0940 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

36. Assertion (A): Oceanic crust \u0938\u093e\u092e\u093e\u0928\u094d\u092f\u0924\u0903 continental crust \u0938\u0947 \u0905\u0927\u093f\u0915 dense \u0939\u094b\u0924\u0940 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

Reason (R): Oceanic crust \u092e\u0947\u0902 basaltic\/mafic composition \u0915\u093e \u092a\u094d\u0930\u092d\u0941\u0924\u094d\u0935 \u0939\u094b\u0924\u093e \u0939\u0948\u0964<\/strong><\/span><\/p>\n

(A) A \u0914\u0930 R \u0926\u094b\u0928\u094b\u0902 \u0938\u0939\u0940 \u0939\u0948\u0902 \u0924\u0925\u093e R, A \u0915\u0940 \u0938\u0939\u0940 \u0935\u094d\u092f\u093e\u0916\u094d\u092f\u093e \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(B) A \u0914\u0930 R \u0926\u094b\u0928\u094b\u0902 \u0938\u0939\u0940 \u0939\u0948\u0902, \u0932\u0947\u0915\u093f\u0928 R \u0938\u0939\u0940 \u0935\u094d\u092f\u093e\u0916\u094d\u092f\u093e \u0928\u0939\u0940\u0902 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(C) A \u0938\u0939\u0940 \u0939\u0948, R \u0917\u0932\u0924 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(D) A \u0917\u0932\u0924 \u0939\u0948, R \u0938\u0939\u0940 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

37. Assertion (A): Lithosphere \u0914\u0930 Asthenosphere \u0915\u0940 mechanical properties \u0905\u0932\u0917 \u0939\u094b\u0924\u0940 \u0939\u0948\u0902\u0964<\/span><\/strong><\/span><\/p>\n

Reason (R): Lithosphere relatively rigid \u0939\u0948, \u091c\u092c\u0915\u093f Asthenosphere comparatively weak\/ductile behavior \u092a\u094d\u0930\u0926\u0930\u094d\u0936\u093f\u0924 \u0915\u0930\u0924\u0940 \u0939\u0948\u0964<\/strong><\/span><\/p>\n

(A) A \u0914\u0930 R \u0926\u094b\u0928\u094b\u0902 \u0938\u0939\u0940 \u0939\u0948\u0902 \u0924\u0925\u093e R, A \u0915\u0940 \u0938\u0939\u0940 \u0935\u094d\u092f\u093e\u0916\u094d\u092f\u093e \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(B) A \u0914\u0930 R \u0926\u094b\u0928\u094b\u0902 \u0938\u0939\u0940 \u0939\u0948\u0902, \u0932\u0947\u0915\u093f\u0928 R \u0938\u0939\u0940 \u0935\u094d\u092f\u093e\u0916\u094d\u092f\u093e \u0928\u0939\u0940\u0902 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(C) A \u0938\u0939\u0940 \u0939\u0948, R \u0917\u0932\u0924 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(D) A \u0917\u0932\u0924 \u0939\u0948, R \u0938\u0939\u0940 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

38. \u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u0915\u093e \u0938\u0939\u0940 \u092e\u093f\u0932\u093e\u0928 \u0915\u0940\u091c\u093f\u090f:<\/strong><\/span><\/p>\n\n\n\n\n\n\n\n
\u0938\u0942\u091a\u0940-I<\/span><\/strong><\/span><\/td>\n\u0938\u0942\u091a\u0940-II<\/span><\/strong><\/span><\/td>\n<\/tr>\n
A. Moho<\/span><\/strong><\/span><\/td>\n1. Crust\u2013Mantle boundary<\/span><\/strong><\/span><\/td>\n<\/tr>\n
B. Gutenberg<\/span><\/strong><\/span><\/td>\n2. Mantle\u2013Outer Core boundary<\/span><\/strong><\/span><\/td>\n<\/tr>\n
C. Lehmann<\/span><\/strong><\/span><\/td>\n3. Outer Core\u2013Inner Core boundary<\/span><\/strong><\/span><\/td>\n<\/tr>\n
D. Asthenosphere<\/span><\/strong><\/span><\/td>\n4. Weak\/ductile zone<\/span><\/strong><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

(A) A-1, B-2, C-3, D-4<\/span><\/strong><\/span><\/p>\n

(B) A-2, B-1, C-4, D-3<\/span><\/strong><\/span><\/p>\n

(C) A-1, B-3, C-2, D-4<\/span><\/strong><\/span><\/p>\n

(D) A-4, B-2, C-3, D-1<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

39. \u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u0915\u093e \u0938\u0939\u0940 \u092e\u093f\u0932\u093e\u0928 \u0915\u0940\u091c\u093f\u090f:<\/strong><\/span><\/p>\n\n\n\n\n\n\n\n
\u0938\u0942\u091a\u0940-I<\/span><\/strong><\/span><\/td>\n\u0938\u0942\u091a\u0940-II<\/span><\/strong><\/span><\/td>\n<\/tr>\n
A. P-wave<\/span><\/strong><\/span><\/td>\n1. Compressional<\/span><\/strong><\/span><\/td>\n<\/tr>\n
B. S-wave<\/span><\/strong><\/span><\/td>\n2. Shear<\/span><\/strong><\/span><\/td>\n<\/tr>\n
C. Surface wave<\/span><\/strong><\/span><\/td>\n3. Near-surface propagation<\/span><\/strong><\/span><\/td>\n<\/tr>\n
D. Geodynamo<\/span><\/strong><\/span><\/td>\n4. Magnetic field generation<\/span><\/strong><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
(A) A-1, B-2, C-3, D-4<\/span><\/strong><\/span><\/div>\n

(B) A-2, B-1, C-4, D-3<\/span><\/strong><\/span><\/p>\n

(C) A-3, B-2, C-1, D-4<\/span><\/strong><\/span><\/p>\n

(D) A-4, B-3, C-2, D-1<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

40. \u0928\u093f\u092e\u094d\u0928 \u092e\u0947\u0902 \u0938\u0947 \u0915\u094c\u0928-\u0938\u093e \u0917\u0932\u0924 \u0938\u0941\u092e\u0947\u0932\u093f\u0924 \u0939\u0948?<\/span><\/strong><\/span><\/p>\n

Which is incorrectly matched?<\/strong><\/span><\/p>\n

(A) Moho – Crust-Mantle boundary<\/span><\/strong><\/span><\/p>\n

(B) Gutenberg – Mantle-Core boundary<\/span><\/strong><\/span><\/p>\n

(C) Lehmann – Outer Core-Inner Core boundary<\/span><\/strong><\/span><\/p>\n

(D) Asthenosphere – Rigid metallic inner core<\/span><\/strong><\/span><\/p>\n

Answer: (D)<\/strong><\/span><\/p>\n

41. \u0928\u093f\u092e\u094d\u0928 \u092e\u0947\u0902 \u0938\u0947 \u0915\u094c\u0928-\u0938\u093e \u0917\u0932\u0924 \u0938\u0941\u092e\u0947\u0932\u093f\u0924 \u0939\u0948?<\/span><\/strong><\/span><\/p>\n

Which is incorrectly matched?<\/strong><\/span><\/p>\n

(A) P-wave – Primary wave<\/span><\/strong><\/span><\/p>\n

(B) S-wave – Secondary wave<\/span><\/strong><\/span><\/p>\n

(C) P-wave – Shear wave<\/span><\/strong><\/span><\/p>\n

(D) S-wave – Transverse wave<\/span><\/strong><\/span><\/p>\n

Answer: (C)<\/strong><\/span><\/p>\n

42. \u092f\u0926\u093f \u0915\u093f\u0938\u0940 seismic wave \u0915\u0940 velocity \u0905\u091a\u093e\u0928\u0915 \u092c\u0922\u093c \u091c\u093e\u0924\u0940 \u0939\u0948, \u0924\u094b \u092f\u0939 \u0915\u093f\u0938\u0915\u0940 \u0913\u0930 \u0938\u0902\u0915\u0947\u0924 \u0915\u0930 \u0938\u0915\u0924\u093e \u0939\u0948?<\/strong><\/span><\/p>\n

If the velocity of a seismic wave suddenly increases, what may it indicate?<\/strong><\/span><\/p>\n

(A) Material properties\/density \u092f\u093e rigidity \u092e\u0947\u0902 \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u0928 \u0935\u093e\u0932\u0940 discontinuity<\/span><\/strong><\/span><\/p>\n

(B) \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0947 rotation \u0915\u093e \u0930\u0941\u0915\u0928\u093e<\/span><\/strong><\/span><\/p>\n

(C) \u0915\u0947\u0935\u0932 atmospheric pressure \u092e\u0947\u0902 \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u0928<\/span><\/strong><\/span><\/p>\n

(D) \u0915\u0947\u0935\u0932 rainfall \u092e\u0947\u0902 \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u0928<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

43. Seismic wave velocity \u092e\u0941\u0916\u094d\u092f\u0924\u0903 \u0915\u093f\u0928 factors \u0938\u0947 \u092a\u094d\u0930\u092d\u093e\u0935\u093f\u0924 \u0939\u094b\u0924\u0940 \u0939\u0948?<\/strong><\/span><\/p>\n

Seismic wave velocity is mainly influenced by which factors?<\/strong><\/span><\/p>\n

(A) \u0915\u0947\u0935\u0932 rainfall<\/span><\/strong><\/span><\/p>\n

(B) \u0915\u0947\u0935\u0932 latitude<\/span><\/strong><\/span><\/p>\n

(C) Elastic properties, density, pressure \u0914\u0930 temperature<\/span><\/strong><\/span><\/p>\n

(D) \u0915\u0947\u0935\u0932 ocean currents<\/span><\/strong><\/span><\/p>\n

Answer: (C)<\/strong><\/span><\/p>\n

44. \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0947 \u0906\u0902\u0924\u0930\u093f\u0915 \u092d\u093e\u0917 \u092e\u0947\u0902 seismic waves \u0915\u0947 refraction \u0914\u0930 reflection \u0915\u093e \u0905\u0927\u094d\u092f\u092f\u0928 \u0915\u094d\u092f\u094b\u0902 \u092e\u0939\u0924\u094d\u0935\u092a\u0942\u0930\u094d\u0923 \u0939\u0948?<\/strong><\/span><\/p>\n

Why are refraction and reflection of seismic waves important in studying Earth’s interior?<\/strong><\/span><\/p>\n

(A) \u0907\u0938\u0938\u0947 internal boundaries \u0914\u0930 material changes \u0915\u093e \u0905\u0928\u0941\u092e\u093e\u0928 \u0932\u0917\u093e\u092f\u093e \u091c\u093e \u0938\u0915\u0924\u093e \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(B) \u0907\u0938\u0938\u0947 \u0915\u0947\u0935\u0932 surface rainfall \u091c\u094d\u091e\u093e\u0924 \u0939\u094b\u0924\u0940 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(C) \u0907\u0938\u0938\u0947 \u0915\u0947\u0935\u0932 atmospheric composition \u091c\u094d\u091e\u093e\u0924 \u0939\u094b\u0924\u0940 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(D) \u0907\u0938\u0938\u0947 \u0915\u0947\u0935\u0932 ocean depth \u091c\u094d\u091e\u093e\u0924 \u0939\u094b\u0924\u0940 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

45. \u092f\u0926\u093f P-wave \u0915\u093f\u0938\u0940 boundary \u092a\u0930 refract \u0939\u094b\u0924\u0940 \u0939\u0948 \u0914\u0930 velocity \u092e\u0947\u0902 \u0938\u094d\u092a\u0937\u094d\u091f \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u0928 \u0926\u093f\u0916\u093e\u0908 \u0926\u0947\u0924\u093e \u0939\u0948, \u0924\u094b \u0907\u0938\u0915\u093e \u0938\u092c\u0938\u0947 \u0909\u092a\u092f\u0941\u0915\u094d\u0924 interpretation \u0915\u094d\u092f\u093e \u0939\u094b\u0917\u093e?<\/strong><\/span><\/p>\n

If a P-wave refracts at a boundary and shows a marked change in velocity, what is the most appropriate interpretation?<\/strong><\/span><\/p>\n

(A) \u0935\u0939\u093e\u0901 material properties \u092e\u0947\u0902 \u092c\u0926\u0932\u093e\u0935 \u0935\u093e\u0932\u0940 internal discontinuity \u0939\u094b \u0938\u0915\u0924\u0940 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(B) \u0935\u0939\u093e\u0901 atmosphere \u0938\u092e\u093e\u092a\u094d\u0924 \u0939\u094b \u0917\u092f\u093e \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(C) \u0935\u0939\u093e\u0901 gravity \u0938\u092e\u093e\u092a\u094d\u0924 \u0939\u094b \u0917\u0908 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(D) \u0935\u0939\u093e\u0901 \u0915\u094b\u0908 material \u092e\u094c\u091c\u0942\u0926 \u0928\u0939\u0940\u0902 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

46. \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0940 \u0906\u0902\u0924\u0930\u093f\u0915 \u0938\u0902\u0930\u091a\u0928\u093e \u0915\u0947 \u0938\u0902\u0926\u0930\u094d\u092d \u092e\u0947\u0902 shadow zone \u0915\u093f\u0938\u0938\u0947 \u0938\u0902\u092c\u0902\u0927\u093f\u0924 \u0939\u0948?<\/span><\/strong><\/span><\/p>\n

In the context of Earth’s internal structure, what is a seismic shadow zone associated with?<\/strong><\/span><\/p>\n

(A) \u0915\u0941\u091b angular distances \u092a\u0930 seismic waves \u0915\u0947 direct arrival \u0915\u093e \u0905\u092d\u093e\u0935\/\u0915\u092e\u091c\u094b\u0930\u0940<\/span><\/strong><\/span><\/p>\n

(B) \u0915\u0947\u0935\u0932 solar eclipse<\/span><\/strong><\/span><\/p>\n

(C) \u0915\u0947\u0935\u0932 atmospheric shadow<\/span><\/strong><\/span><\/p>\n

(D) \u0915\u0947\u0935\u0932 oceanic tides<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

47. P-wave shadow zone \u0915\u093e \u092a\u094d\u0930\u092e\u0941\u0916 \u0915\u093e\u0930\u0923 \u0915\u094d\u092f\u093e \u0939\u0948?<\/strong><\/span><\/p>\n

What is a major cause of the P-wave shadow zone?<\/strong><\/span><\/p>\n

(A) Atmosphere \u0915\u093e \u092a\u0942\u0930\u094d\u0923 \u0905\u092d\u093e\u0935<\/span><\/strong><\/span><\/p>\n

(B) \u0915\u0947\u0935\u0932 continental drift<\/span><\/strong><\/span><\/p>\n

(C) Core boundary \u092a\u0930 strong refraction \u0914\u0930 outer core \u0915\u0940 seismic properties<\/span><\/strong><\/span><\/p>\n

(D) \u0915\u0947\u0935\u0932 ocean currents<\/span><\/strong><\/span><\/p>\n

Answer: (C)<\/strong><\/span><\/p>\n

48. Meteorites \u0915\u094b \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0947 interior \u0915\u0947 \u0905\u0927\u094d\u092f\u092f\u0928 \u092e\u0947\u0902 \u0909\u092a\u092f\u094b\u0917\u0940 \u0915\u094d\u092f\u094b\u0902 \u092e\u093e\u0928\u093e \u091c\u093e\u0924\u093e \u0939\u0948?<\/strong><\/span><\/p>\n

Why are meteorites considered useful in studying Earth’s interior?<\/strong><\/span><\/p>\n

(A) \u0935\u0947 Solar System \u0915\u0947 \u092a\u094d\u0930\u093e\u0930\u0902\u092d\u093f\u0915 \u092a\u0926\u093e\u0930\u094d\u0925 \u0914\u0930 planetary composition \u0915\u0947 \u092c\u093e\u0930\u0947 \u092e\u0947\u0902 clues \u092a\u094d\u0930\u0926\u093e\u0928 \u0915\u0930 \u0938\u0915\u0924\u0947 \u0939\u0948\u0902\u0964<\/span><\/strong><\/span><\/p>\n

(B) \u0935\u0947 \u0938\u0940\u0927\u0947 Earth’s core \u0938\u0947 \u092c\u093e\u0939\u0930 \u0906\u0924\u0947 \u0939\u0948\u0902\u0964<\/span><\/strong><\/span><\/p>\n

(C) \u0935\u0947 \u0915\u0947\u0935\u0932 atmospheric gases \u0938\u0947 \u092c\u0928\u0947 \u0939\u0948\u0902\u0964<\/span><\/strong><\/span><\/p>\n

(D) \u0909\u0928\u0915\u093e Earth \u0915\u0940 composition \u0938\u0947 \u0915\u094b\u0908 \u0938\u0902\u092c\u0902\u0927 \u0928\u0939\u0940\u0902 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

Answer: (A)<\/strong><\/span><\/p>\n

49. \u092f\u0926\u093f \u0915\u093f\u0938\u0940 planet \u0915\u0947 interior \u092e\u0947\u0902 S-waves \u0915\u093e \u090f\u0915 \u092c\u0921\u093c\u0947 \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u092e\u0947\u0902 propagation \u0928\u0939\u0940\u0902 \u0939\u094b\u0924\u093e, \u0924\u094b \u0938\u092c\u0938\u0947 \u0924\u093e\u0930\u094d\u0915\u093f\u0915 inference \u0915\u094d\u092f\u093e \u0939\u094b\u0917\u093e?<\/strong><\/span><\/p>\n

If S-waves do not propagate through a large internal region of a planet, what is the most logical inference?<\/strong><\/span><\/p>\n

(A) \u092a\u0942\u0930\u093e planet gaseous \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(B) \u0909\u0938 region \u092e\u0947\u0902 liquid \u092f\u093e \u092c\u0939\u0941\u0924 \u0915\u092e\u091c\u094b\u0930 shear strength \u0935\u093e\u0932\u093e material \u0939\u094b \u0938\u0915\u0924\u093e \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(C) \u0909\u0938 planet \u092e\u0947\u0902 gravity \u0928\u0939\u0940\u0902 \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

(D) \u0935\u0939\u093e\u0901 temperature \u0936\u0942\u0928\u094d\u092f \u0939\u0948\u0964<\/span><\/strong><\/span><\/p>\n

Answer: (B)<\/strong><\/span><\/p>\n

50. \u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0940 \u0906\u0902\u0924\u0930\u093f\u0915 \u0938\u0902\u0930\u091a\u0928\u093e \u0915\u0947 \u0905\u0927\u094d\u092f\u092f\u0928 \u0915\u0947 \u0932\u093f\u090f \u0938\u092c\u0938\u0947 \u0935\u094d\u092f\u093e\u092a\u0915 \u0914\u0930 \u0935\u0948\u091c\u094d\u091e\u093e\u0928\u093f\u0915 approach \u0915\u094c\u0928-\u0938\u093e \u0939\u0948?<\/strong><\/span><\/p>\n

Which is the most comprehensive scientific approach for studying Earth’s internal structure?<\/strong><\/span><\/p>\n

(A) \u0915\u0947\u0935\u0932 surface rocks \u0915\u093e \u0905\u0927\u094d\u092f\u092f\u0928<\/span><\/strong><\/span><\/p>\n

(B) \u0915\u0947\u0935\u0932 volcanic eruptions \u0915\u093e \u0905\u0927\u094d\u092f\u092f\u0928<\/span><\/strong><\/span><\/p>\n

(C) Seismology + gravity + geomagnetism + heat flow + meteorites + geological evidence \u0915\u093e \u0938\u0902\u092f\u0941\u0915\u094d\u0924 \u0905\u0927\u094d\u092f\u092f\u0928<\/span><\/strong><\/span><\/p>\n

(D) \u0915\u0947\u0935\u0932 atmospheric observations<\/span><\/strong><\/span><\/p>\n

Answer: (C)<\/strong><\/span><\/p>\n

UGC NET\/JRF Quick Revision<\/strong><\/span><\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Concept<\/span><\/strong><\/td>\nKey Point<\/span><\/strong><\/td>\n<\/tr>\n
Crust<\/span><\/strong><\/td>\n\u092a\u0943\u0925\u094d\u0935\u0940 \u0915\u0940 \u0938\u092c\u0938\u0947 \u092c\u093e\u0939\u0930\u0940 compositional layer<\/span><\/strong><\/td>\n<\/tr>\n
Mantle<\/span><\/strong><\/td>\n\u0938\u092c\u0938\u0947 \u092e\u094b\u091f\u0940 major compositional layer<\/span><\/strong><\/td>\n<\/tr>\n
Core<\/span><\/strong><\/td>\n\u092e\u0941\u0916\u094d\u092f\u0924\u0903 metallic, Fe-Ni rich<\/span><\/strong><\/td>\n<\/tr>\n
Outer Core<\/span><\/strong><\/td>\nPredominantly liquid<\/span><\/strong><\/td>\n<\/tr>\n
Inner Core<\/span><\/strong><\/td>\nPredominantly solid<\/span><\/strong><\/td>\n<\/tr>\n
Moho<\/span><\/strong><\/td>\nCrust\u2013Mantle boundary<\/span><\/strong><\/td>\n<\/tr>\n
Gutenberg<\/span><\/strong><\/td>\nMantle\u2013Outer Core boundary<\/span><\/strong><\/td>\n<\/tr>\n
Lehmann<\/span><\/strong><\/td>\nOuter Core\u2013Inner Core boundary<\/span><\/strong><\/td>\n<\/tr>\n
P-Wave<\/span><\/strong><\/td>\nCompressional, fastest body wave<\/span><\/strong><\/td>\n<\/tr>\n
S-Wave<\/span><\/strong><\/td>\nShear, liquids \u092e\u0947\u0902 propagate \u0928\u0939\u0940\u0902 \u0915\u0930\u0924\u0940<\/span><\/strong><\/td>\n<\/tr>\n
Lithosphere<\/span><\/strong><\/td>\nRigid outer mechanical layer<\/span><\/strong><\/td>\n<\/tr>\n
Asthenosphere<\/span><\/strong><\/td>\nRelatively weak\/ductile zone<\/span><\/strong><\/td>\n<\/tr>\n
Geothermal Gradient<\/span><\/strong><\/td>\nDepth \u0915\u0947 \u0938\u093e\u0925 temperature change<\/span><\/strong><\/td>\n<\/tr>\n
Gravity Anomaly<\/span><\/strong><\/td>\nSubsurface density variation<\/span><\/strong><\/td>\n<\/tr>\n
Geomagnetism<\/span><\/strong><\/td>\nEarth’s magnetic field \u0938\u0947 \u0938\u0902\u092c\u0902\u0927\u093f\u0924<\/span><\/strong><\/td>\n<\/tr>\n
Geodynamo<\/span><\/strong><\/td>\nOuter core \u092e\u0947\u0902 conducting fluid motion<\/span><\/strong><\/td>\n<\/tr>\n
Shadow Zone<\/span><\/strong><\/td>\nSeismic-wave behavior \u0938\u0947 \u0938\u0902\u092c\u0902\u0927\u093f\u0924<\/span><\/strong><\/td>\n<\/tr>\n
Meteorites<\/span><\/strong><\/td>\nPlanetary\/Solar System composition \u0915\u0947 clues<\/span><\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Read More:<\/b><\/span><\/p>\n