Question

Which of the following are sources of extra nutrients that can cause algae to overgrow in water due to HUMAN activity? CAREFULLY select all options that apply

dissolved oxygen in water

treated waste water

viruses

combined sewage overflow (CSO)

fertilizers

cleaning products

dog poop on the streets of NYC

water running over rocks

(This is 7th grade sciencve).

Answer 1

Too much nitrogen and phosphorus in the water causes algae to grow faster than ecosystems can handle. Significant increases in algae harm water quality, food resources and habitats, and decrease the oxygen that fish and other aquatic life need to survive.

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