2.falls Corresponds to falls of rock mass of any size that are detached from a steep slope or cliff, along a surface where little or no shear displacement takes place, and descends mainly through the air, falling, jumping or rolling, very quickly and may or may not be preceded by minor movements, leading to the progressive separation of the mass of an area of parent rock.
3.flows A flow is a slow movement of sediment downward, where the particles move semi-independently (usually with the help of water)
Slope failure is called the rock slide and/or soil due to the action of the gravitational stress forces.
