Question

residual mountains are also called mountains of denudation give reason​

Answer 1

• Residual mountains are formed as a result of erosion of an existing elevated area.
• So,They are also called mountains of denudation.

Answer 2

Answer:

Residual mountains are also called mountains of denudation because residual mountains are such type of mountains which are formed by the action of denudation agents such as running water, ice, wind etc on the already existing mountains.  

Explanation:

When a residual mountain is attacked by the wind or ice it gets damaged and only part of it is left. This is called as Residual Mountain. As they are formed due to attack of denudation agents they are also called Denudation Mountains.