the sea
Processes of coastal erosion
100

What is a swash?

The waves that moves up the shore

100

What is hydraulic action?

The power of water as it crashes against the coast 

200

What is a backwash?

The waves that moves back down the shore.

200

What is abrasion?

Waves that pick up stones and throw them against the coast.

300

What do constructive waves build?

Constructive waves build a beach.

300

What is compressed air?

Air in rocks becomes trapped by the incoming waves. The trapped air puts pressure on the rocks. When the water retreats the air expands and the pressure drops. This repeated compression and release causes rocks to shatter.

400

What do destructive waves do?

Destructive waves can destroy a beach.

400

What is attrition?

Stones carried by the waves hit off each other. Over time they are worn down and smoothed.

500

Name all the different types of sea features.

- sea cliff, sea cave, arch, stump, beach, sand dunes, sand spit, sand bar, lagoon, Tombolo, 

500

What is solution?

Certain rocks, such as limestone, are dissolved by the water 

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