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17-02-2022
Biology

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Which change would create a new ecosystem? (1 point)
O a lake freezing over
O an introduced species
O a dam flooding a valley
O a yearly migration

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hespinosa3043 hespinosa3043

22-02-2022

Answer:

a dam flooding a valley

Explanation:

It would be a dam flooding a valley because in a new ecosystem there would then be a increased load of phosphorus and nitrogen and increased algae growth.

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