Question

how are plains formed?
​

Answer 1

Answer:

Most of the plains are formed by rivers and their tributaries. The rivers flow down the slopes of mountains and erode them

Answer 2

Explanation:

Plains form in many different ways. Some plains form as ice and water erodes, or wears away, the dirt and rock on higher land. Water and ice carry the bits of dirt, rock, and other material, called sediment, down hillsides to be deposited elsewhere. As layer upon layer of this sediment is laid down, plains form.