Erosion

Question 1

Hydraulic action

Answer 1

A wave attack on a cliff or platform edge exerts hydraulic pressure and forces air and water into cracks in the rock

Question 2

Wave quarrying

Answer 2

Removal of rocks and other debris on cliff or wave cut platforms from their original position by waves

Question 3

Cavitation

Answer 3

When there is intense erosion due to surface collapse of air bubbles found in rapid flows of water. The implosion of the bubble causes a jet of water to travel with high pressure and out stress on an area.

Question 4

Corrosion

Answer 4

Sand and pebbles hurled against the cliff foot by the power of the waves, chipping away at rock

Question 5

Abrasion

Answer 5

Also known as sandpapering as sediment is dragged up and back over the shoreline in the swash and backwash

Question 6

Solution

Answer 6

Weak acids in seawater dissolved alkaline rock

Question 7

Attrition

Answer 7

Smaller particles being made via impact and abrasion of other rocks