What structure do the roots have to increase the surface area in order to absorb more water? A. Guard cells

B. Root hairs

C. Phloem

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 answer is d. none of the above

i do believe the correct answer would be the third one. location c, because earth is tilted away from the sun at this time

hope this