Quartz has a hardness of: MCQ with Answer and Explanation

Quartz has a hardness of:

A. 6

B. 7

C. 8

D. 5

Answer: Option B

Quartz has a hardness value of 7 on the Mohs scale and is one of the most common minerals in Earth's crust.

This question belongs to: Geography GK Physical Geography

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Question #1 Report Error

The world's largest hot desert is:

A. Sahara Desert

B. Kalahari Desert

C. Arabian Desert

D. Gobi Desert

Correct Answer: Option A

Explanation:
The Sahara Desert in North Africa is the largest hot desert in the world, covering about 9 million square kilometers.

This question belongs to: Geography GK Physical Geography

Question #2 Report Error

Auroras are mainly observed in the:

A. Troposphere

B. Mesosphere

C. Thermosphere

D. Stratosphere

Correct Answer: Option C

Explanation:
Auroras occur in the thermosphere when charged solar particles interact with atmospheric gases.

This question belongs to: Geography GK Physical Geography

Question #3 Report Error

The combined process of evaporation and transpiration is known as:

A. Precipitation

B. Infiltration

C. Evapotranspiration

D. Condensation

Correct Answer: Option C

Explanation:
Evapotranspiration refers to water transfer from land to atmosphere through evaporation and plant transpiration.

This question belongs to: Geography GK Physical Geography