Volcanic activities are common in which of the following?

1. Young fold mountains
2. Old fold mountains
3. Residual mountains
4. Volcanic plateaus

Which amongst the following are highly eroded by the agents of gradation and have gentler slopes, rounded tops and sculptured domes?

1. Young fold mountains
2. Old fold mountains
3. Residual mountains
4. Volcanic plateaus

Which of the following are correctly matched?

1. Young fold mountains: Himalayas, Alps
2. Old fold mountains : Urals, Aravalli
3. Residual mountains : Nilgiri, Rajmahal Hills
4. All of the above.

The plains that are formed by the deposition of materials which have been brought by various agents of transportation:

1. Structural plain
2. Depositional plain
3. Plain
4. Landform