Erosion

Question 1

Definition

Answer 1

Breakdown, removal and transportation of rock

Question 2

Factors affecting erosion

Answer 2

Waves
Rock type
Coastal shape
Fetch 
Size of beach 
Human development

Question 3

Hydraulic action

Answer 3

Impact on rocks of the hoser force of the water itself

Can exert enormous pressure on rock surface weakening it

Question 4

Wave quarrying

Answer 4

Breaking wave traps air as it hits a cliff face
Force of water compresses air into gaps-> pressure
Weakens cliff face

Question 5

Abrasion/Corrasion

Answer 5

Launching of rock fragments and pebbles against cliffs by waves
Breaks pieces of soil cliff and weakens structure

Question 6

Cavitation

Answer 6

Opening of cavities within cliff due to changes in pressure as waves crash into and out of cracks in rock

Question 7

Solution

Answer 7

Chalk and limestone is dissolved by weak acids and rock is removed in solution

Question 8

Attrition

Answer 8

Smoothing and reducing of angular rock fragments into pebbles
Bang against each other