Assume that the central slip face of a barchan dune slopes downhill toward the east.What is the direction of the prevailing wind?
A)east to west
B)north to south
C)south to north
D)west to east

Question

Quizplus · Accepted Answer

The prevailing wind direction is opposite to the slope of the dune's slip face, so if the slip face slopes downhill toward the east, the wind must be coming from the west to the east.

Assume That the Central Slip Face of a Barchan Dune