Solutions to MCQs based on Class XI Geography NCERT

Solutions to MCQs based on Class XI Geography NCERT

(UPSC CIVIL SERVICES EXAMINATION & OTHER COMPETITIVE EXAMINATIONS)

QuestionSolutionExplanation
1c
2bThe theory explains the origin of universe.
3dStatements are reversed
4a
5dCretaceous is linked to extinction & jurassic is age of dinasours.
6dStatements are reversed
7aThe shadow zone of S-wave is much larger than that of the P-waves.
8c
9bOceanic crust is thinner as compared to the continental crust.
10c
11bThe outer core is in liquid state while the inner core is in solid state.
12c
13c
14asingle continental mass called PANGEA and mega ocean PANTHALASSA surrounded the same.
15c
16c
17aContinental Margins include continental shelf, continental slope, continental rise and deep-oceanic trenches.
18c
19b Between the Philippine
and Indian plate
20c
21cIn the east, it extends through Rakinyoma Mountains of Myanmar towards the island arc along the
Java Trench.
22c
23c
24c
25c
26c
27c
28c
29bDensity is highest near the surface of the earth and decreases with increasing altitude.
30c
31bConduction is important in heating the lower layers of the atmosphere.
32aThere is a surplus of net radiation balance between 40 degrees north and south and the
regions near the poles have a deficit.
33c
34c
35bThe air at the Inter Tropical Convergence Zone (ITCZ) rises because of convection caused
by high insolation and a low pressure is created.
36aIf an air mass is fully lifted above the land surface, it is called the occluded front.
37c
38c
39c
40c
41aSeamount is a mountain with pointed summits, rising from the seafloor that does not reach the surface of the ocean.
42c
43c
44c
45cThe mixing of warm and cold currents help to replenish the oxygen and favour the growth of planktons, the primary food for fish population. The primary forces that influence the currents are: (i) heating by solar energy; (ii) wind; (iii) gravity; (iv) coriolis force.
46a
47b
48c
49c
50a

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