Which side of a dune typically has a slope angle equal to that of the angle of repose for sand?
A)Windward.
B)Leeward.
C)Stoss.
D)Top.

Question

Quizplus · Accepted Answer

The leeward side of a dune typically has a slope angle equal to the angle of repose for sand because the sand grains on this side are sheltered from the strong winds and can settle into a stable slope angle. The windward side, on the other hand, has a steeper slope angle as the prevailing wind pushes sand up and over the dune, causing it to accumulate and constantly shift. Stoss and top are not typically used to describe the slope angles of a dune.

Which Side of a Dune Typically Has a Slope Angle