Which of the following geographical features or phenomena is/are associated with the Peninsular Block of India?
- Submergence of parts of the western coast due to tectonic activity
- Presence of residual mountain ranges such as the Veliconda hills and Mahendragiri hills
- Deep, V-shaped river valleys formed by fast-flowing rivers
Select the answer using the code given below:
Correct answer: B
Explanation
The Peninsular Block, one of India's three macro physiographic divisions, is characterised by: (1) submergence of parts of the western coast (the Konkan-Malabar submerged coast, evidenced by drowned river mouths and offshore islands due to faulting); (2) residual mountain ranges such as the Aravallis, Nallamala, Velikonda and Mahendragiri hills, which are remnants of older folded systems. However, deep V-shaped valleys with fast-flowing rivers are characteristic of the youthful Himalayan rivers, not the mature, graded peninsular rivers (which mostly flow in shallow valleys). Hence 1 and 2 only. NCERT XI India: Physical Environment, Ch. 2. Read more: Himalaya Mountain: Formation, Ranges, Rivers, Passes and UPSC Notes.