Question

The Vindhyas belong to which class of mountains?
a.Block mountains
b.Fold mountains
c.Volcanic mountains
d.Residual mountains

Answer 1

Hint: Mountains are created when large blocks of the Earth are broken and displaced vertically. Mountains are formed by various geological processes; including erosion, weathering, movement of tectonic plates and volcanic eruptions.

Complete Answer: Mountains are categorized into 4 types:
-upward mountains
-volcanic mountains
-fault-block mountains
-folded mountains

Looking at the options given:

Option a: Block mountains are formed due to faults in the earth's crust. The Vindhyas of India are block mountains that consist of horizontally bedded sedimentary rocks. This is the correct answer.

Option b: Fold mountains are formed mainly by two or more of tectonic plates. The Himalayas are geologically the young fold mountains that cover the Northern border of India. This is an incorrect option.

Option c: The Barren Island volcano is the only active volcano, in the Andaman and Nicobar Islands of India. This is the incorrect answer.

Option d: Residual mountains are formed as a result of erosion and denudation. Aravalli Ranges are an example of the residual mountains. This is an incorrect answer.

Option 'a' is correct.

Note:
-California's Mount Whitney is the highest peak which is a part of the Sierra Nevada is a fault-block mountain range.
-The Vindhyas have great historical and mythological significance.
-The Malwa plateau lies between the Vindhyas and the Aravalli ranges.
-The Vindhyas are one of the only two mountain ranges mentioned in the national anthem of India.