Which statement best illustrates a biotic or an abiotic factor that is often found in a city park?
o decaying leaves are an abiotic factor because they are not living.
o rocks are an abiotic factor because they have never been alive.
o water in ponds is a biotic factor, because it provides a habitat for living things.
o oxygen is a biotic factor, because it is required for life and found in all living things.

o rocks are an abiotic factor because they have never been alive

Explanation:

anything biotic is alive animals people cells etc

abiotic means rocks minerals temperature oxygen etc abiotic can affect biotic things but that doesn't mean its biotic

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.

b.