fetch - the area covered by the wave, swash - the waves breaking upon the shore, backwash - the waves receding from the shore, gravitational pull - the force that affects tides, duration - how long something lasts, erosion - the process that wears away the land, deposition - the process that build up the land, constructive - waves that build up the land, destructive - waves that erode the land, arch - physical feature formed through erosion of a sea cave, corrosion - chemicals in the water causing the land to wear away, hydraulic action - water forced into cracks that eventually breaks up the bank/shore,

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