Processes of river erosion

Question 1

Processes of erosion that operate in the upper course of the river

Answer 1

There are 5

Question 2

Erosion

Answer 2

Is the wearing away of land

Question 3

Hydraulic action-

Answer 3

This process involves the force of water against the bed and banks

Question 4

(“The sand paper effect”)

Abrasion/corrosion

Answer 4

This is the process by which the bed and banks are worn down by the river’s load (weight). The river throws these particles against the bed and banks, sometimes at high velocity

Question 5

Attrition-

Answer 5

Material (the load) particles e.g rocks carried by the river bump into each other and so are smoothed and Brocken into smaller particles

Question 6

Corrosion

Answer 6

This is the chemical action of the river water. This helps the water slowly dissolve the and bank