Which of the following comes under the phenomena of mass movement?
A. Soil creep
B. Landslide
Mass movement or mass wasting is movements of masses of bodies of soil, bedrock, rock debris, soil, or mud which usually occur along steep-sided hills and mountains because of the pull of gravity. This slipping of large amounts of rock and soil is seen in landslides, mud slides, and avalanches.
Landslides occur when masses of rock, earth, or debris move down a slope. They may be very small or very large, and can move at slow to very high speeds. However, slow movement is also seen in the gradual downhill creep of soil on gently sloping land.