Weathering, The breakdown of rock by the action of weather or plants, Chemical weathering, Acids in rainwater dissolve and break rocks, Biological weathering, Tree and shrub roots break up solid rocks, Freeze-thaw weathering, Water in cracks in rocks freeze, expands and cause the rock to break, Erosion, The wearing away of the landscape, Abrasion, When rocks and stones stuck to the bottom of glaciers rub against the surface below acting like sandpaper as the glacier moves, Plucking, When rocks and stones become frozen to the base or sides of the glacier and are plucked from the ground or rock face as the glacier moves, Transportation, When material is moved by rivers, sea or ice, Glacial Deposition, When material carried by glaciers is put down/dumped as the glacier loses energy, Mass movement, The downhill movement of material that moves because of gravity, Rockfall, Unstable rock fragments fall easily after they have been weathered, Soil creep, Rain dislodges soil particles causing them to slowly move down the slope.

Physical processes

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