The correct answer to this open question is the following.
In a desert, soil containing a mixture of sand and small rocks is exposed to wind erosion. Over time, the land surface change in that the wind picks up sediment carrying it over until falls on top of each other to form dunes.
Wind erosion affects deserts. There is no vegetation and lack of rain, so wind removes the fertile portion of the soil. Deserts are arid and dry, and the high-speed wind is a constant in these regions. Another issue of Deserts is the extreme temperatures that could be found in desertic zones. Very hot weather during the day, and very cold at night.
