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How can the addition of non-toxic amounts of fertilizer end up killing fish in a pond?

a. plants can no longer grow so fish run out of food.
b. bacteria blooms and decreased underwater photosynthesis causes hypoxia, killing the fish.
c. floating algae die, increasing sunlight penetration and heating the water.
d. bacterial populations crash, causing algae blooms?

1 Answer

4 votes
The answer is B. Bacteria blooms and decreased underwater photosynthesis causes asphyxia, killing the fish.

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