Coastal processes

Question 1

Abrasion

Answer 1

Process of erosion caused by rocks and material banging against the cliff face

Question 2

Hydraulic action

Answer 2

Power of the waves force air into the cracks in the rock, causing a small explosion which erodes the rock away

Question 3

Solution/Corrasion

Answer 3

Chemicals, particularly acids in the water wear away the rock

Question 4

Attrition

Answer 4

Already eroded rocks bang against each other and cause each other to become smaller and more rounded.

Question 5

Long shore drift

Answer 5

Transportation process whereby the prevailing wind moves beach sediment along the beach over time.

The sediment goes up the beach at the angle of the wind and comes back down at right angles to the sea.

Question 6

Traction

Answer 6

Transportation of the material by rolling it along the beach of seabed.

Question 7

Saltation

Answer 7

The sediment gets bounced along as it is light enough to be momentarily picked up.

Question 8

Suspension

Answer 8

Fine sediment can be picked up by the ocean and transported through the process of suspension

Question 9

Solution

Answer 9

The water can absorb chemical from the rocks and carry them away as part of a solution with the sea water.

Question 10

Friction

Answer 10

This force, when applied by the wind causes waves to form which get larger the longer the fetch it.