Which mineral is the hardest according to Mohs scale? MCQ with Answer and Explanation

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Which mineral is the hardest according to Mohs scale?

A. Topaz

B. Diamond

C. Quartz

D. Corundum

Answer: Option B

Solution (By JKSSB Mock Tests)

Diamond ranks 10 on the Mohs hardness scale and is the hardest naturally occurring mineral.

This question belongs to: Geography GK Physical Geography

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A geyser is associated with:

A. River Deposition

B. Glacial Action

C. Groundwater Heated by Magma

D. Wind Erosion

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Correct Answer: Option C

Explanation:
Geysers occur when groundwater is heated by volcanic activity and erupts periodically as hot water and steam.

This question belongs to: Geography GK Physical Geography

Question #2

The water cycle is also known as:

A. Rock Cycle

B. Hydrological Cycle

C. Nitrogen Cycle

D. Carbon Cycle

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Correct Answer: Option B

Explanation:
The hydrological cycle describes the continuous movement of water between land, oceans, and atmosphere.

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Question #3

The Earth's revolution around the Sun causes:

A. Seasons

B. Earthquakes

C. Day and Night

D. Ocean Currents

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Correct Answer: Option A

Explanation:
The Earth's revolution around the Sun, combined with axial tilt, causes seasons.

This question belongs to: Geography GK Physical Geography

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