A persistent mass movement of surface soil is called a
A) debris avalanche.
B) soil creep.
C) soil slide.
D) rockfall.

Question

Quizplus · Accepted Answer

A persistent mass movement of surface soil is called soil creep. Debris avalanche involves the rapid movement of a mix of rock, soil, vegetation, and other debris. Soil slide involves the movement of a mass of soil from a higher elevation to a lower elevation along a defined failure plane. Rockfall is the sudden drop or detachment of rocks from a cliff or steep slope.

A Persistent Mass Movement of Surface Soil Is Called a