A mass-wasting process in which rocks break free from cliff faces and rapidly tumble into the valley below is a
A) mudflow.
B) slump.
C) rockfall.
D) solifluction.
E) debris slide.

Question

Quizplus · Accepted Answer

The process described is that of rocks breaking free from a cliff face and rapidly tumbling (falling) down into the valley below. This is characteristic of a rockfall, where loose rocks fall freely due to the influence of gravity. The other options (mudflow, slump, solifluction, debris slide) involve different types of mass-wasting processes, such as the slow movement of soil downhill, the sliding of a block of earth along a curved surface, or the flow of a mixture of water and sediment downhill.

A Mass-Wasting Process in Which Rocks Break Free from Cliff