Briefly explain why sand is moved by wind before clay and silt during wind erosion
Sand grains protrude above the surface and are more easily caught by the wind, while clay and silt grains lie closer to the surface where there is a stationary layer of air, unless this is disturbed.
You might also like to view...
The spread of something over a given study area is
A) concentration. B) density. C) distribution. D) pattern. E) diffusion.
A taboo against pork is a characteristic of
A) Judaism and Islam. B) Judaism and Buddhism. C) Christianity and Buddhism. D) Christianity and Hinduism. E) Islam and Hinduism.
Which of the following is true of the formula weights of a material which exists in both anhydrous and hydrated forms?
A) They have the same formula weight. B) The hydrated form always has a lower formula weight. C) The hydrated form always has a higher formula weight. D) We cannot make any general statement about the formula weights of the two forms.
Coarse-grained regolith where 20 to 80 percent of the fragments are greater than 2 millimeters in size is called
A) soil. B) rock. C) earth. D) debris.