Transporting material - Gcse

Question 1

Under normal conditions waves tend to move material where on the beach?

Answer 1

UP the beach.

Question 2

When shingle is piled at the foot of a cliff what does this do?

Answer 2

It protects the cliff from erosion.

Storm conditions mean large waves move material back down the beach.

Question 3

Give an example of how the movement of beach material impacts the cliffs?

Answer 3

During one year at the end of the last century.
600,000 tonnes of shinglewas removed from the beach at Hallsands in Devon.
Used for construction of the naval dockland at plymouth.
Clifff exposed to erosion.
Within a century the cliff retreated almost 10 metres.

Question 4

What is longshore drift?

Answer 4

The movement of material along a beach.

Human activities can affect the rate at which coastal land forms develop.