A stack is formed when: MCQ with Answer and Explanation

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A stack is formed when:

A. A sea arch collapses

B. A glacier melts

C. A volcano erupts

D. A river deposits sediment

Answer: Option A

Solution (By JKSSB Mock Tests)

When the roof of a sea arch collapses, a detached pillar called a stack remains.

This question belongs to: Geography GK Physical Geography

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Practice More Physical Geography Questions

Question #1

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Which is the highest plateau in the world?

A. Deccan Plateau

B. Bolivian Plateau

C. Tibetan Plateau

D. Mexican Plateau

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Correct Answer: Option C

Explanation:
The Tibetan Plateau has an average elevation exceeding 4,500 meters.

This question belongs to: Geography GK Physical Geography

Question #2

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A caldera is:

A. A Large Volcanic Depression

B. A River Valley

C. A Glacial Deposit

D. A Coral Reef

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Correct Answer: Option A

Explanation:
A caldera forms when a volcano collapses into an emptied magma chamber after a major eruption.

This question belongs to: Geography GK Physical Geography

Question #3

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Which is the world's largest ice sheet?

A. Antarctic Ice Sheet

B. Patagonian Ice Field

C. Greenland Ice Sheet

D. Arctic Ice Cap

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Correct Answer: Option A

Explanation:
The Antarctic Ice Sheet contains about 90% of the world's ice.

This question belongs to: Geography GK Physical Geography

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