Which mineral dominates the Earth's mantle? MCQ with Answer and Explanation

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Which mineral dominates the Earth's mantle?

A. Quartz

B. Gypsum

C. Calcite

D. Olivine

Answer: Option D

Solution (By JKSSB Mock Tests)

Olivine-rich ultramafic rocks are dominant in the Earth's mantle.

This question belongs to: Geography GK Physical Geography

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Which ocean contains the largest number of islands?

A. Pacific Ocean

B. Arctic Ocean

C. Indian Ocean

D. Atlantic Ocean

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Correct Answer: Option A

Explanation:
The Pacific Ocean contains thousands of islands and island groups.

This question belongs to: Geography GK Physical Geography

Question #2

The strongest winds in the atmosphere are generally found in:

A. Sea breezes

B. Mountain winds

C. Jet streams

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Correct Answer: Option C

Explanation:
Jet streams are narrow bands of extremely fast-moving winds.

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Question #3

The water cycle is driven primarily by:

A. Earthquakes

B. Solar Energy

C. Gravity Alone

D. Volcanoes

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Correct Answer: Option B

Explanation:
The Sun provides the energy needed for evaporation, which drives the hydrological cycle.

This question belongs to: Geography GK Physical Geography

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