The height of a dune remains constant when
A)the wind speed is constant.
B)there is more accumulation on the slip face than the windblown side.
C)sand grains blow off the top of the dune as quickly as they are brought up the windward slope.
D)the windward slope reaches the angle of repose.

Question

Quizplus · Accepted Answer

The height of a dune remains constant when the rate at which sand grains are blown off the top of the dune matches the rate at which they are brought up the windward slope. This balance maintains the dune's size.

The Height of a Dune Remains Constant When