Science, asked by arifbaba876, 3 months ago

waste water story
class 7 science
summary

Answers

Answered by tulsyanshivansh1235

3

Answer:

please mark me as brainlist

Answered by ma3037659

0

Answer:

The inorganic impurities present in sewage are nitrates, phosphates and metals. ... The bacteria present in sewage include those bacteria which cause water-borne diseases such as cholera and typhoid. The other microbes present in sewage are Protozoa which cause a water-borne disease called dysentery.

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