process of erosion

Question 1

hydraulic action

Answer 1

when water compresses air into the riverbank causing the rock to weaken and break apart

Question 2

abrasion

Answer 2

when the force of the water throws bed load against the banks causing erosion

Question 3

attrition

Answer 3

when the rivers load collides and breaks into smaller fragments causing the rocks to become smaller and rounder

Question 4

solution

Answer 4

when the acids in the water react with the rock (dissolving the rock)