Coastal Processes

Question 1

Corrasion

Answer 1

When a wave hits the coast, it throws sand and pebbles against the cliff face.

Question 2

Attrition

Answer 2

Particles hitting against one another

Question 3

Solution

Answer 3

Sea water dissolving rocks eg limestone

Question 4

Hydraulic action

Answer 4

The power of the sea can physically wash away soft rocks like Boulder

Question 5

What is longshore drift

Answer 5

If waves approach the beach at an angle, the swash carries material up the beach at this angle, but the backwash returns it straight back to the waters edge by gravity. This zig zag movement is called longshore drift.

Question 6

Deposition

Answer 6

When waves are constructive they deposit the load they carry onto the shore.