Question

what are harmful microorganisms​

Answer 1

Answer:

Microorganisms that cause illnesses also affect water quality. Bacteria are single-celled organisms that cannot be seen with the human eye except through a microscope. Some kinds of bacteria are the most dangerous microorganisms. They usually get into water supplies when untreated sewage mixes with the water supply.

Explanation:

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Answer 2

HI MATE HERE IS YOUR ANSWER

Microorganisms that causes illness also affect water quality . Bactria are single celled organisms that cannot be seen with human eyes except microscope . Some kind of bacteria are the most dangerous microorganisms . They usually get into water supplies when untreated sewage mixes with the water supplies .

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