One side of a sand dune is typically steeper than the other side.The steepest slope is controlled by the angle of repose for sand and most materials,which is about

Question

Quizplus · Accepted Answer

The angle of repose is the steepest angle at which a material can rest without sliding or collapsing. This angle varies for different materials, but for sand, it's about 34 degrees. Therefore, the steepest slope of a sand dune is controlled by this angle of repose, and the best choice for the answer is option C.

One Side of a Sand Dune Is Typically Steeper Than