Explain how a wave-cut platform is formed - 6 marks

A wave cut platform is formed by the sea attacking the cliff face though different types of erosion e.g. abrasion and hydraulic action. Abrasion is where cliffs are worn down from destructive waves and the throwing of material in the waves. Hydraulic action occurs when the waves enter cracks within the cliff at the high tide mark, compressing the air within and resulting in expansion of the crack as the wave retreats. This then has the effect of creating a notch which slowly becomes larger and larger, forming a small cave. As erosion continues to occur, the weight of the cliff eventually cannot support itself and collapses as a result with the material being deposited and then carried out to sea. Through repetition of these processes, a wave cut platform is formed.