The coldest layer of the atmosphere is: MCQ with Answer and Explanation

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The coldest layer of the atmosphere is:

A. Troposphere

B. Thermosphere

C. Stratosphere

D. Mesosphere

Answer: Option D

Solution (By JKSSB Mock Tests)

The mesosphere is the coldest atmospheric layer, with temperatures reaching around -90°C.

This question belongs to: Geography GK Physical Geography

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Question #1

The Hawaiian Islands are primarily of ______ origin.

A. Glacial

B. Fluvial

C. Aeolian

D. Volcanic

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Correct Answer: Option D

Explanation:
The Hawaiian Islands were formed by volcanic activity over a hotspot beneath the Pacific Plate.

This question belongs to: Geography GK Physical Geography

Question #2

Which landform is formed when a river cuts deeply into a plateau?

A. Lagoon

B. Levee

C. Canyon

D. Delta

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Correct Answer: Option C

Explanation:
A canyon is a deep valley with steep sides formed by river erosion over long periods.

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Question #3

The Equator passes through how many continents?

A. 5

B. 4

C. 3

D. 2

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Correct Answer: Option C

Explanation:
The Equator passes through South America, Africa, and Asia (Indonesia).

This question belongs to: Geography GK Physical Geography

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