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

Which mineral is the hardest according to Mohs scale?
A. Quartz
B. Topaz
C. Diamond
D. Corundum
Answer: Option C
Solution (By JKExamLibrary)
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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Practice More Physical Geography Questions

Question #1 Report Error
The wearing away of the Earth's surface by natural agents is called:
A. Deposition
B. Weathering
C. Erosion
D. Folding

Correct Answer: Option C


Explanation:
Erosion is the removal and transportation of weathered material by agents such as rivers, wind, glaciers, and waves.

This question belongs to: Geography GK Physical Geography
Question #2 Report Error
The standard time of India is based on:
A. 75° E Longitude
B. 90° E Longitude
C. 82.5° E Longitude
D. 70° E Longitude

Correct Answer: Option C


Explanation:
Indian Standard Time (IST) is based on 82.5° East longitude, passing near Mirzapur, Uttar Pradesh.

This question belongs to: Geography GK Physical Geography
Question #3 Report Error
Which imaginary line passes through Greenwich, England?
A. Tropic of Cancer
B. International Date Line
C. Prime Meridian
D. Equator

Correct Answer: Option C


Explanation:
The Prime Meridian at 0° longitude passes through Greenwich.

This question belongs to: Geography GK Physical Geography