A mass-wasting process in which rock and sediment rotate and move down the slope along a concave plane relative to the surface is a(n)
A) avalanche.
B) slump.
C) soil creep.
D) mudflow.
E) rockfall.

Question

Quizplus · Accepted Answer

Slump is a type of mass wasting process in which rock and sediment rotate and move down the slope along a concave plane relative to the surface. It can occur in cohesive (clay-rich) or non-cohesive (sand and gravel) materials and is often triggered by heavy rainfall or human activities. The movement can be slow or fast, and the resulting scar can have a curved or horseshoe shape.

A Mass-Wasting Process in Which Rock and Sediment Rotate and Move