A stack is formed when: MCQ with Answer and Explanation

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A stack is formed when:

A. A volcano erupts

B. A glacier melts

C. A river deposits sediment

D. A sea arch collapses

Answer: Option D

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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Question #1

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Which wind system blows from land to sea during the night?

A. Land Breeze

B. Sea Breeze

C. Trade Wind

D. Monsoon

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Correct Answer: Option A

Explanation:
Land cools faster than water at night, creating a land breeze that blows toward the sea.

This question belongs to: Geography GK Physical Geography

Question #2

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Which type of earthquake is caused by volcanic activity?

A. Collapse Earthquake

B. Tectonic Earthquake

C. Volcanic Earthquake

D. Artificial Earthquake

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Correct Answer: Option C

Explanation:
Volcanic earthquakes occur due to movement of magma beneath the Earth's surface.

This question belongs to: Geography GK Physical Geography

Question #3

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Which element is the second most abundant in the Earth's crust?

A. Calcium

B. Silicon

C. Iron

D. Magnesium

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Correct Answer: Option B

Explanation:
Silicon makes up about 27.7% of the Earth's crust and combines with oxygen to form silicate minerals.

This question belongs to: Geography GK Physical Geography

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