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Why does sewage decrease the number of mayfly larvae??

User Kemba
by
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2 Answers

2 votes
it damages the mayfly larvae. hope this helps
User Mittal Varsani
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8.3k points
1 vote
The sewage is full of bacteria which uses a lot of oxygen and the mayfly larvae might not have enough oxygen to live if they live by sewage
User Joshayers
by
8.7k points
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