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?

<p>Storms (A)</p> Signup and view all the answers

What is the purpose of hard stabilization structures?

<p>To control erosion (B)</p> Signup and view all the answers

What is the main concern for owners of beachfront properties?

<p>Costly damage (C)</p> Signup and view all the answers

What is the impact of coastal erosion on coastal communities?

<p>Negative impact on lives and costly damage (B)</p> Signup and view all the answers

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

<p>Wave refraction (B)</p> Signup and view all the answers

What is the purpose of a groin?

<p>To trap sand moving down the coast (A)</p> Signup and view all the answers

What is the function of a breakwater?

<p>To protect the coast and create a calm area of water (C)</p> Signup and view all the answers

How do groins affect the movement of sand?

<p>They trap sand on the upstream side and cause erosion on the downstream side (C)</p> Signup and view all the answers

What is the purpose of a seawall?

<p>To protect the coast from the force of waves (B)</p> Signup and view all the answers

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

<p>A breakwater is built offshore, while a seawall is built near the beach (D)</p> Signup and view all the answers

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

<p>Longshore drift (D)</p> Signup and view all the answers

Why do coastal communities build structures like groins and seawalls?

<p>To protect property and coastal structures from wave action (B)</p> Signup and view all the answers

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