The highly eroded form of the Aravalli indicates which long-term geographical process?

Correct answer: Long-term weathering and erosion

The governing concept is the relationship between geological age, relief and denudation. The Aravalli range is one of the very old fold mountain systems of the Indian subcontinent. Over a very long period, weathering breaks rock into smaller particles and erosion removes that material through water, wind and gravity. Repeated denudation lowers and rounds the mountains, producing the highly eroded and discontinuous relief seen today. Therefore, option B is correct. Recent folding would normally produce younger, sharper relief, while coral formation and glacial deposition are specific processes that do not explain the broad character of the Aravallis.