Question

harmful effects of pond
water​

Answer 1

Answer:

The plants use up so much oxygen during the night and during decaying processes that there is none left for the other pond-life. The growth also prevents sunlight reaching the organisms below. Eventually, all the algae die leaving a smelly, decaying mass. The case of excess nitrates in water is called eutrophication.

Answer 2

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1. Ponds may become contaminated with dangerous bacteria .
2. such as E. coli, that can result in devastating health effects in humans.
3. Symptoms include an array of health issues, such as diarrhea and neurological problems .