Top 2 - Coastal Landscapes

Question 1

List the four processes of transportation and briefly describe each one.

Answer 1

Solution - Soluble materials are dissolved into the water and carried along.
Saltation - Medium size particles bounce along the sea bed
Suspension - Smaller particles float in the water e.g Clay
Traction - Large rocks are rolled along the sea bed

Question 2

Describe the difference between hard and soft engineering.

Answer 2

Man made structure built to control the flow of the sea and reduce and erosion. Soft engineering is schemes set up using the knowledge of the sea and its processes to reduce the effects of flooding and erosion.

Question 3

Give one disadvantage of using sea walls as a coastal defence.

Answer 3

Very expensive to build and maintain.

Question 4

What are Gabions?

Answer 4

A wall of wire case filled with rocks usually build at the foot of cliffs.

Question 5

What is rock armour?

Answer 5

Boulders that are pilled up along the coast.

Question 6

Name two soft engineering strategies

Give one benefit for each.

Answer 6

Dune regeneration, is cheap

Beach nourishment and reprofiling, creates wider beaches which slow waves

Question 7

What is managed retreat?

Answer 7

Managed Retreat involves removing current defences and allowing the sea to flood the land behind.