Answer :
the mass is a fast process in the form of a landslide the mass is a slow process in the form of a creep
Creep denotes the slow downslope movement of particles that occurs on every slope covered with loose, weathered material. Landslide on the other hand is the movement of a mass of rock, debris, or earth down a slope.
The main difference between these two movements is the rate of flow. Creep is much slower than the landslide.
