Mass Movement is the downhill movement of cliff material under the influence of gravity.

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Hard engineering involves building artificial structures which try to control natural processes.

Find out more about hard engineering at the coast.

Salt weathering is when salt spray from the sea gets into a crack in a rock. It may evaporate and crystallise, putting pressure on the surrounding rock and weakening the structure.

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Rock fall, landslide, mudslide and slumping.

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Traction – large pebbles and boulders are rolled along the seafloor.

Find out more about coastal transportation.