Mass movement is the movement of material downslope under the influence of gravity. It is the falling, sliding or flowing of rock, sediment or soil most often along a slip plane (line of weakness).
Different types of mass movement can include landslides, rockfalls, even avalanches.
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Mass wasting is also known as mass movement or slope movement,is the geomorphic process by which soil,sand,regolith,and rock move downslope typically as a mass,largely under the force of gravity.i hope it helps u