Erosion and transportation

Hydraulic power

Sheer force of water batters cliffs
Constant pounding erodes rock
Destructive waves- cause

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Breaking waves throw sand & rock against rock face
Breaks off pieces of rock
Sandpaper effect

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Waves cause rocks and pebbles on beach
Get smaller- they bump into each other

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Chemical action of sea water on rocks
Most effective- limestone rocks
Carried away in solution

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Traction- large boulders rolled along sea bed

Saltation: smaller boulders bounced along

Suspension- sand grains carried in water

Solution- lime from chalk & limestone rocks dissolved
Carried in water

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