Which mineral is the primary source of aluminum? MCQ with Answer and Explanation

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Which mineral is the primary source of aluminum?

A. Bauxite

B. Mica

C. Gypsum

D. Hematite

Answer: Option A

Solution (By JKSSB Mock Tests)

Bauxite is the principal ore from which aluminum is extracted.

This question belongs to: Geography GK Physical Geography

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Question #1

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Which part of the Earth's mantle is semi-molten and allows tectonic plates to move?

A. Lithosphere

B. Outer Core

C. Asthenosphere

D. Mesosphere

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Correct Answer: Option C

Explanation:
The asthenosphere is a semi-molten, plastic layer beneath the lithosphere. Tectonic plates float and move over this layer.

This question belongs to: Geography GK Physical Geography

Question #2

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The line joining places of equal atmospheric pressure is called:

A. Isobar

B. Isohyet

C. Contour

D. Isotherm

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Correct Answer: Option A

Explanation:
Isobars connect points having the same atmospheric pressure.

This question belongs to: Geography GK Physical Geography

Question #3

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Which type of volcano has broad gentle slopes?

A. Cone Volcano

B. Shield Volcano

C. Composite Volcano

D. Caldera

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Correct Answer: Option B

Explanation:
Shield volcanoes are formed by fluid lava flows and have broad, gently sloping sides.

This question belongs to: Geography GK Physical Geography

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