What conclusion is drawn from the old and eroded form of the Aravalli?
Answer and explanation
Correct answer: It is an ancient range that has undergone long erosion
The governing concept is the relation between geological age, uplift, and erosion. The Aravalli Range is one of the oldest fold mountain systems in the Indian subcontinent. It has experienced geological weathering and erosion for a very long time, so its relief is generally lower, more discontinuous, and more rounded than that of young mountains such as the Himalaya. Option A correctly draws this conclusion from its old and eroded appearance. Option B reverses the age relationship because the Himalaya is geologically younger and still tectonically active. Option C is wrong because Aravalli is not made entirely of glacial material, and option D describes coral islands, a marine biological landform unrelated to this ancient continental range.
Frequently asked questions
What is the correct answer to this question?
It is an ancient range that has undergone long erosion
Why is this the correct answer?
The governing concept is the relation between geological age, uplift, and erosion. The Aravalli Range is one of the oldest fold mountain systems in the Indian subcontinent. It has experienced geological weathering and erosion for a very long time, so its relief is generally lower, more discontinuous, and more rounded than that of young mountains such as the Himalaya. Option A correctly draws this conclusion from its old and eroded appearance. Option B reverses the age relationship because the Himalaya is geologically younger and still tectonically active. Option C is wrong because Aravalli is not made entirely of glacial material, and option D describes coral islands, a marine biological landform unrelated to this ancient continental range.
Which subject and chapter does this question cover?
This is a Class 10 General Knowledge question. Chapter: Indian Geography. Topic: Mountains and Plateaus of India.
