Which one of the following is determined by the angle of repose for dry sand?
A)longitudinal dune gradient angle
B)windward slope of a transverse dune
C)a vertical cut bank in loess
D)inclination angle of a dune slip face

Question

Quizplus · Accepted Answer

The angle of repose refers to the steepest angle at which loose material can remain stable without collapsing or sliding down. In the case of dry sand, the angle of repose is typically around 30-35 degrees. The inclination angle of a dune slip face, which represents the angle at which sand particles accumulate on the downwind side of a dune, is roughly equivalent to the angle of repose. Therefore, the angle of repose for dry sand determines the inclination angle of a dune slip face, making choice D the correct answer.

Which One of the Following Is Determined by the Angle