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. Corundum
C. Diamond
D. Topaz
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 world's largest active volcano by volume is:
A. Mauna Loa
B. Krakatoa
C. Mount Etna
D. Mount Fuji

Correct Answer: Option A


Explanation:
Mauna Loa in Hawaii is one of the largest active volcanoes on Earth.

This question belongs to: Geography GK Physical Geography
Question #2 Report Error
Which seismic waves cannot travel through liquids?
A. P-Waves
B. L-Waves
C. Surface Waves
D. S-Waves

Correct Answer: Option D


Explanation:
S-waves (Secondary Waves) cannot pass through liquids, which helped scientists determine that the outer core is liquid.

This question belongs to: Geography GK Physical Geography
Question #3 Report Error
The largest gulf in the world is:
A. Gulf of California
B. Gulf of Aden
C. Persian Gulf
D. Gulf of Mexico

Correct Answer: Option D


Explanation:
The Gulf of Mexico is the largest gulf in the world by area.

This question belongs to: Geography GK Physical Geography