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Coastal Erosion

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Questions and Answers

Which term is used to describe the wearing away of coastal land and beaches?

Coastal degradation

Beach erosion (correct)

Ocean encroachment

Shoreline erosion

What are hard stabilization structures used for?

To cause damage to coastal communities

To protect beachfront properties (correct)

To accelerate coastal erosion

To shift sand along the beach

What are the forces that constantly act upon beaches and shorelines?

Tides and currents (correct)

Rain and wind

Earthquakes and tsunamis

Volcanic eruptions and landslides

What can accelerate the process of coastal erosion?

Storms Signup and view all the answers

What is the purpose of hard stabilization structures?

To control erosion Signup and view all the answers

What is the main concern for owners of beachfront properties?

Costly damage Signup and view all the answers

What is the impact of coastal erosion on coastal communities?

Negative impact on lives and costly damage Signup and view all the answers

Which process is responsible for the movement of sand and sediment along the coast?

Wave refraction Signup and view all the answers

What is the purpose of a groin?

To trap sand moving down the coast Signup and view all the answers

What is the function of a breakwater?

To protect the coast and create a calm area of water Signup and view all the answers

How do groins affect the movement of sand?

They trap sand on the upstream side and cause erosion on the downstream side Signup and view all the answers

What is the purpose of a seawall?

To protect the coast from the force of waves Signup and view all the answers

What is the main difference between a breakwater and a seawall?

A breakwater is built offshore, while a seawall is built near the beach Signup and view all the answers

What is the term for the process by which sand and sediment are transported along the coast?

Longshore drift Signup and view all the answers

Why do coastal communities build structures like groins and seawalls?

To protect property and coastal structures from wave action Signup and view all the answers