Frost wedging along canyon walls such as the Grand Canyon produce pile of loose, angular rock debris that accumulates beneath many cliffs and this pile of material is called what? _______________
A) litter
B) topsoil
C) caliche
D) talus

Question

Quizplus · Accepted Answer

The pile of loose, angular rock debris that accumulates beneath many cliffs due to frost wedging is called talus. Option A, litter refers to the layer of dead leaves and other organic material on the forest floor. Option B, topsoil refers to the upper layer of soil where most of the plant roots live. Option C, caliche refers to a hardened layer of calcium carbonate in the soil.

Frost Wedging Along Canyon Walls Such as the Grand Canyon