Which sentence best explains eutrophication?
A. Bacteria are introduced to break down hydrocarbons in an oil spill.
B. Materials containing metal are toxic to organisms that live in them.
C. The Mercury contained in fish builds up in animals that eat the fish.
D. An increased growth in microorganisms results in oxygen depletion.
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Which sentence best explains eutrophication?
A. Bacteria are introduced to break down hydrocarbons...
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