Question

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a scientist discovers that the acidity of a lake increases overtime. at the same time, its population of Minnows grew smaller. when the adicity of the lake return to normal, The Minnow population recover.

In what two ways can the minnow population be used to monitor the Lakes water quality?

Answer 1

In the above case we can understand that,

1. If the pH of the water increases the population of Minnows decreases.
2. Minnows population can be determined by the acidity of the lake water.
3. Minnows cannot survive in basic water.

Answer 2

Answer: The answer is "It can be used to identify possible pH changes." and "It can be used as a bioindicator."

Step-by-step explanation:

I got it right.