One Side of a Sand Dune Is Typically Steeper Than

question 108

Multiple Choice

One side of a sand dune is typically steeper than the other side. The slope of the steepest is controlled by the angle of repose for sand-which has a value that is typical for most materials. This angle is about ________.

• A) 5 degrees
• B) 15 degrees
• C) 34 degrees
• D) 78 degrees

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