Is competition abiotic or biotic?

competition would be biotic if it were living or breathing

Explanation:

biotic means it lives, like plants or humans. abiotic means it doesnt live or breath, like a rock. i hope this helped

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.