Co - The Forelands Erosion

Question 0

Which 2 processes are responsible for the formation of caves and arches?

Answer 0

Abrasion and Hydraulic action

Question 1

Where is The Forelands located?

Answer 1

East Purbeck - Dorset

Question 2

What is Abrasion?

Answer 2

When bits of sand and rock smash into the cliffs, slowly weakening them

Question 3

What is Hydraulic action?

Answer 3

Air becomes trapped in gaps in rocks, then when a wave smashes into them, the air is compressed, slowly weakening the rock

Question 4

How are stacks made?

Answer 4

When overhanging land from arches can’t support itself, and so collapses, separating 2 pieces of land, the one not connected to the mainlands is the stack

Question 5

What is the example of a stack in The Forelands?

Answer 5

Old Harry

Question 6

How are ‘wave-cut notches’ formed?

Answer 6

When sides of stacks begin to be undercut

Question 7

How is a ‘wave-cut notch’ formed?

Answer 7

When abrasion and hydraulic action erodes the cliffs more at high tide, the lower land isn’t eroded as fast, and so a wave-cut platform is formed

Question 8

What is the order of the costal erosion at ‘The Forelands’?

Answer 8

Caves > (A/H.A.) > Arches > (Collapses) > Stacks > (A/H.A.) > Wave-cut notch > (A/H.A.) > Wave-cut platform