Help me i need to turn this in

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."

colors do exist. the color of the sky is actually violet; humans percieve the color of the sky as blue.

paper covers rock.

explanation:

rock only smashes scissors.

1)

i))the process of preparing food by green plants in the presence of sunlight is called photosynthesis.

ii) leaf is the site for photosynthesis.

iii) it takes place as,

6h2o+6co2=c6h12o6+602