a scientist discovers that the acidity of a lake increased over time. at the same time, its population of minnows grew much smaller. when the acidity of the lake returned to normal, the minnow population recovered. in what two ways can the minnow population be used to monitor the lake's water quality?
A. it can be used to control turbidity.
B. it can be used as a bioindicator.
C. it can be used to identify possible pH changes.
D. it can be used to increase dissolved oxygen.
YOU HAVE TO CHOOSE 2
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Answer:
A and D is the right answer
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