The effects of abrasion by windblown sand and silt:
A) form blowouts.
B) are responsible for the delicate caps on high desert pinnacles.
C) are concentrated close to the ground.
D) form playa lakes.

Question

Quizplus · Accepted Answer

Abrasion by windblown sand and silt is most effective close to the ground because the particles carried by the wind tend to be concentrated at lower elevations due to gravity and the nature of wind flow near the surface.

The Effects of Abrasion by Windblown Sand and Silt