Which element is the second most abundant in the Earth's crust? MCQ with Answer and Explanation

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

A. Silicon

B. Magnesium

C. Calcium

D. Iron

Answer: Option A

Solution (By JKSSB Mock Tests)

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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Practice More Physical Geography Questions

Question #1

The branch of science dealing with atmospheric conditions is called:

A. Meteorology

B. Oceanography

C. Geology

D. Hydrology

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Correct Answer: Option A

Explanation:
Meteorology studies atmospheric processes, weather, and climate.

This question belongs to: Geography GK Physical Geography

Question #2

Loess deposits are primarily composed of:

A. Volcanic Ash

B. Glacial Till

C. Marine Clay

D. Wind-blown Silt

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Correct Answer: Option D

Explanation:
Loess consists of fine wind-deposited silt and is highly fertile.

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Question #3

Which is the largest coral atoll nation in the world?

A. Sri Lanka

B. Fiji

C. Iceland

D. Maldives

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Correct Answer: Option D

Explanation:
The Maldives consists of numerous coral atolls and is the world's largest coral atoll nation.

This question belongs to: Geography GK Physical Geography

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