Processes
Actions
Landforms
Managing the Coast
General Coastal Trivia
100
What is the process that wears away rocks and beaches?
Erosion
100
What is created when when wind blows across water?
Waves
100
What common landform is a result of gentle wave action laying down sand?
Beach
100
What measure to control erosion is shown in this picture?
groynes
100
What percent of Australians live near the coast?
80%
200
What is the movement of water down the beach and back to the sea called?
Backwash
200
What role does vegetation play for sand dunes?
Stabilises the dune and prevents erosion by wind.
200
This picture shows a landform created when an oceanic volcano sinks slowly below the water, what is it called?
Coastal Atoll
200
What is it called when sand is added to a beach as a replacement for material lost?
Beach nourishment
200
The wearing away of cliffs by sediment flung by breaking waves
Abrasion
300
What is the process that adds new sand to a beach?
Deposition
300
When sand from the beach is blown inland these are formed.
Dunes
300
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What coastal landform can you see in this picture?
Coastal Cliffs
300
What is the erosion control measure in this picture?
Sea wall
300
What is longshore drift?
The transportation of sediments parallel along the shoreline through by the current
400
The movement of water along the beach is called?
Longshore drift
400
What is the name for a narrow body of sand that extends into the sea?
A spit
400
What two processes occur that continually change beaches?
Erosion and Deposition
400
What activity in this picture can lead to dune erosion?
vehicle use in dunes
400
Name two coastal erosion solutions
- Jetties
- Rockwalls
- Beach nourishment
- Groyne
- Coastal blanket
- Sand bagging
500
What three spheres interact to create coastal landforms?
Lithosphere, atmosphere, hydrosphere
500
What coastal landform created when an arch collapses is shown?
A Stack
500
The landform in this picture is created by which main process?
erosion
500
What control measure tries to reduce the energy of destructive waves before they reach the shore?
offshore breakwater
500
Approximately, there are over _________ beaches in Australia
10, 000