Coastal Environments

Question 1

How is an arch formed?

Answer 1

The destructive waves hit the headland till a crack forms which then erodes away till there is an cove and then eventually it will crumble and form an arch

Question 2

What type of coastline is needed to form headlands and bays

Answer 2

A discordant coastline

Question 3

How do waves effect the costal land forms?

Answer 3

Constructive waves build up the beach making the profile steeper

Destructive waves have a strong back wash and erode the beach giving it a flat beach profile

Question 4

How does weather effect the costal land forms

Answer 4

Storm surges can lead to flooding or erosion of cliffs, also freeze thaw weathering

Question 5

How does pollution effect costal land forms

Answer 5

Oil spills can get into the sand

Question 6

How does buildings effect costal land forms

Answer 6

Surface run off can flood the surrounding land forms and erode them

Question 7

How does costal uplift effect the costal land forms

Answer 7

Underwater earthquakes can cause tsunamis which can destroy beaches and coastal towns

Question 8

How do rivers effect costal land forms

Answer 8

Could transport sediment from land to the coastal zone. Sediment might contribute to beaches and depositional land forms

Question 9

How does rock type effect CLF

Answer 9

Discordant coastline is I’ll crest headlands and bays

Question 10

How does coral reef effect CLF

Answer 10

It acts as a buffer and absorbs some of the waves energy

Question 11

How does climate change effect CLF

Answer 11

Melts the glaciers which increases eustatic sea levels. This creates sumberegent features also increases likelihood that cliffs will be eroded.
alternatively if the isostatic sea level falls due to land rebound when glaciers melt, creating emergent features.