Which is the thinnest layer of the Earth? MCQ with Answer and Explanation

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Which is the thinnest layer of the Earth?

A. Mantle

B. Crust

C. Outer Core

D. Inner Core

Answer: Option B

Solution (By JKSSB Mock Tests)

The crust is the thinnest layer of the Earth, varying from about 5 km under oceans to about 70 km under continents. The mantle and core are much thicker.

This question belongs to: Geography GK Physical Geography

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The Great Barrier Reef lies off the coast of:

A. India

B. South Africa

C. Brazil

D. Australia

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Correct Answer: Option D

Explanation:
The Great Barrier Reef is located in the Coral Sea off northeastern Australia.

This question belongs to: Geography GK Physical Geography

Question #2

Climate is defined as:

A. Hourly weather conditions

B. Daily weather

C. Wind direction only

D. Average weather conditions over a long period

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Correct Answer: Option D

Explanation:
Climate is the average weather pattern of a region over a long period, usually 30 years or more.

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Question #3

A mountain formed by compression of rock layers is called:

A. Residual Mountain

B. Volcanic Mountain

C. Block Mountain

D. Fold Mountain

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Correct Answer: Option D

Explanation:
Fold mountains are formed when rock layers are compressed and folded due to tectonic forces.

This question belongs to: Geography GK Physical Geography

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