Coasts

Question 1

Attrition

Answer 1

When materials carried along in the sea hit against each other causing them to get smaller and smoother.

Question 2

Corrasion/Abrasion

Answer 2

When materials carried along by the sea are hurled at cliffs by waves causing them to be worn down/pieces broken off.

Question 3

Hydraulic Action

Answer 3

Water and air is forced into cracks and joints in the rocks causing them to exert pressure and the blast weakens and loosens rocks causing them to break off

Question 4

Solution/Corrosion

Answer 4

Weak carbonic acids as well as salts in the water can cause weathering thus slowly dissolving rocks along the coast. Rock types such as limestone and chalk are particularly susceptible to this.

Question 5

Salt Crystalisation

Answer 5

When salty sea water evaporates salt can be left behind. Crystals can then grow which can force rocks to break apart.

Question 6

Concordat Coastline

Answer 6

Rock types are parallel to the coastline

Question 7

Discordant Coastline

Answer 7

Rock types are at right angles to the coastline

Question 8

Headland and Bays