Coast Erosions Processes

Question 1

Hydraulic Action

Answer 1

the power of the waves as they smash onto the cliff.
-trapped air is forced into holes and cracks causing the rock to eventually break apart. (cavitation)

Question 2

Solution

Answer 2

the dissolving of soluble chemicals in rock
e.g. limestone

Question 3

Attrition

Answer 3

rock fragments carried by the sea knock against one another becoming smaller & rounder

Question 4

Corrasion
(only for coasts NOT rivers)

Answer 4

fragments of rock are picked up and hurled by the sea at the cliff.
they gouge and erode the rock

Question 5

Abrasion

Answer 5

the sand-papering effect where pebbles grind over a rocky platform making it smooth.