Erosion features

Question 1

Abrasion

Answer 1

Rocks and pebbles are hurled at high velocity against the cliff, causing pieces to break away.

Question 2

Attrition

Answer 2

rocks, pebbles and sand grind against each other as they are moved by wave action, grinding into smother and smaller pieces.

Question 3

Blowhole

Answer 3

A vertical shaft along a cliff formed from a sea cave as water is forced upwards.

Question 4

Corrosion

Answer 4

the slightly acidic nature of seawater results in it slowly dissolving and weakening the rock over time.

Question 5

Destructive waves

Answer 5

narrow, tall and high energy waves which erode more material than they deposit.

Question 6

High energy coastlines

Answer 6

an area which experiences strong winds and high energy waves.

Question 7

Hydraulic action

Answer 7

Waves trap air in cracks in the rock called a cavitation, which expand as the wave breaks, cracking the rock.

Question 8

Wave cut notch

Answer 8

a cavity formed at the base of the cliff due to erosion.