Question

Desert sand dunes are created through the processes of ___________ and ____________.

A) wind and water.
B) erosion and deposition.
C) freezing and thawing
D) physical and chemical weathering.

Answer 1

B, erosion and deposition

Answer 2

B. Erosion and deposition

Step-by-step explanation:

First you can eliminate A. because there isn't much water in a desert.

You can also eliminate C. because deserts are not cold enough to freeze.

Finally you are left with B. and D. Since there is not many chemicals in a desert you can eliminate D.

So you are left with B.