weathering, mass movement, erosion, transportation and deposition processes

Weathering

Freeze thaw (mechanical/physical) weathering - occurs when rocks are porous (contain holes) or permeable (allows water to pass through it

Biological weathering - roots of growing plants can widen cracks in rocks. burrowing animals and resting birds on cliff faces can also cause rocks to weaken and decay.

Chemical weathering - rainwater and seawater can be a weak acid. If a coastline is made up of rocks such as limestone or chalk, over time they can be disolved by the acid in the water

Mass movement

Rockfalls - bits of rock fall off the cliff face, useually due to freeze-thaw weathering

mudflow - saturated soil (soil filled with water) flows down a slope

Landslide - large blacks of rock slide downhill

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