With reference to the Aravalli ranges, which among the following observations is / are correct?
1. They are old fold mountains
2. They have been highly eroded by the agents of gradation
3. There are numerous rift valleys in Aravalli region
Choose the correct option from the codes given below:

Answer: [A] Only 1 & 2

Third statement is incorrect.

This question is a part of GKToday's Integrated IAS General Studies Module