Describe three ways in which a river erodes its channel.?

Answer 1

Freeze and thaw action breaking down rocks.

erotion by material carried in the water like sand particule grinding the riverbed.

Chemical reaction between water and the bed, dissolution of carbonates for exemple

Answer 2

The size, shape, velocity, and other characteristics of a stream depend on all of the previously mentioned factors and their interactions. Consequently, there are different kinds of streams, and streams can change radically if their discharge changes, as during a dry spell or a flood.

Streams erode rock and sediment over which it flows in 3 ways

Hydraulic action

Solution

Abrasion