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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