TOP 10 QUESTIONS FOR NDA AND CDS 2021
Important MCQ 1. Lithosphere consist of [a]Upper and Lower mantle [b]crust and core c. crust and uppermost solid mantle d. mantle and core 2. According to Geo- scientists,the shape of the earth is a. Round b. spherical c. Close to that of the sphere d. an oblate ellipsoid 3. which of the following elements are found in highest and lowest quantities resp. in the crust of the earth a. o2 and silicon b. calciun and sodium c. sodium and magnesium d. oxygen and mgnesium 4. which of the following is /are direct source of in formation about the interior of the Earth ? 1. Earthquake Wave 2.volcano 3.Gravitational Force _. 4. Earth magnetism select the correct answer using the code given below (a) 1 and 2 only (b) .2 only (3) 3 and 4 only (4) 1,2, 3 and 4 5.The most abundant metal in the earth crust-is: (a) calcium . (b) Aluminum (C) Iron (d) magnesium 6. which greek...