Chemistry, 13.03.2022 04:50 toricepeda82

What could cause a build up of algae which would decrease the amount of oxygen available for the organisms in the river? A. protecting natural vegetation along the river.

B. factory pollution

C. erosion of the watershed

D. fertilizer run off from crops into the river

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What could cause a build up of algae which would decrease the amount of oxygen available for the org...

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