The low height and heavy erosion of Aravalli indicate which long-term process?

Correct answer: Long-term weathering and erosion

The Aravalli Range is among the oldest fold mountain systems of the Indian subcontinent. Since its uplift occurred in the distant geological past, it has been exposed to weathering, running water, wind and other erosional agents for a very long period. Continuous denudation reduced and dissected the original relief, so the range is now comparatively low and discontinuous rather than sharply elevated like a young mountain system. This evidence supports option D, long-term weathering and erosion. Recent mountain building would normally produce higher, more active relief; marine coral deposition and glacial deposition are not the processes responsible for the overall identity and low profile of the Aravallis.