Select all that apply
Perspiration
helps cool the body
removes waste chemicals through pores in the skin
keeps the skin soft
keeps the body warm

answer; hypnagogic sensations)

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.

the dark variety, as they are not visible on the dark tree barks

explanation:

characteristics of hydrocarbons