Which of the following geographical features or phenomena is/are associated with the Peninsular Block of India?1.Submergence of parts of the western coast due to tectonic activity2.Presence of residual mountain ranges such as the Veliconda hills and Mahendragiri hills3.Deep, V-shaped river valleys formed by fast-flowing rivers Select the answer using the code given below:

1. A

   1 only

   1 only claims that only the first statement is correct, but the second statement regarding residual mountain ranges in the Peninsular Block is also correct, making this option incomplete.

2. B

   1 and 2

   1 and 2. The western coast of the Peninsular Block has experienced submergence, such as the submerged forests and wave-cut platforms observed near Mumbai, and the Veliconda and Mahendragiri hills are part of the Eastern Ghats, which are classic residual mountain ranges within this stable block.

3. C

   2 and 3

   2 and 3 pairs the correct second statement with the incorrect third statement. The Peninsular rivers are mature, graded streams flowing in broad, shallow valleys rather than deep, V-shaped valleys, which are characteristic of young Himalayan rivers.

4. D

   3 only

   3 only claims that only the third statement is correct, which is false because Peninsular rivers flow in broad, shallow valleys and the region features ancient residual hills rather than deep V-shaped gorges.

Summary. Official key is (b). The Peninsular Block is a stable, ancient continental shield characterized by residual hills like the Veliconda and Mahendragiri and tectonic submergence along its western coast, while its mature rivers flow in broad, shallow valleys rather than deep V-shaped gorges.