Question

What kind of intensive erosional activities do himalayan rivers perform?

Answer 1

Yes. As the rivers in the north move very quick and fast and they emerge from the mountains. So due to their quick and fast movement the erode the land they flow on and when sometimes the rivers changes the way they flow and don't flow in their old path valleys are formed

Answer 2

The Himalayan rivers form large basins. Many rivers pass through the Himalayas. These deep valleys with steep rock sides were formed by the down - cutting of the river during the period of the Himalayan uplift. They perform intense erosional activity up the streams and carry huge load of sand and silt. In the plains, they form large meanders, and a variety of depositional features like flood plains, river cliffs and levees.