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Abrasion- erosion caused by the rubbing of materials carried by rivers, glaciers, waves or wind.

solution- the waves dissolve soluble material from the rock.

hydraulic action- the waves force water into the cracks in the rock . this breaks it up.

Attrition- the waves force the pebbles onto the rocks and rubs them away by friction.

freeze thaw- a form of physical weathering in which rocks split by water in cracks repeatedly freezing and thawing .