Question

See the above figure of a barchan and identify the direction of the wind.

Options

• A

• B

• Both A and B

• Neither A nor B

Answer 1

B

Explanation:

In the figure of a barchan dune, the horns of the dune point in the direction opposite to the wind’s movement. The wind blows towards the horns, shaping the barchan’s crescent shape with the tips of the crescent (the horns) pointing in the direction of the wind.