what is sewage? Explain why it is harmful to discharge untreated sewage into rivers or seas.

Asked by dediramshiya | 20th Feb, 2020, 11:54: PM

Expert Answer:

  • Sewage is the wastewater containing both liquid and solid wastes produced by human activities from homes, industries, hospitals, offices, etc.
  • Sewage contains various contaminants including disease-causing bacteria and other microbes.
  • If untreated sewage is discharged into rivers or seas, then the water in the rivers or seas would also get contaminated.
  • If this contaminated water is used for drinking, then it can cause diseases such as cholera, typhoid, dysentery, etc. which may lead to death.
  • That is why it is harmful to discharge untreated sewage into rivers or seas.
 

Answered by Sheetal Kolte | 24th Feb, 2020, 12:46: PM