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NEETZoologyMicrobes in Human Welfare

What is the treatment of waste water carried out by?

Options

  1. AHuman beings
  2. BHeterotrophic microbes
  3. CMachines
  4. DPathogenic microbes

Correct answer

B. Heterotrophic microbes

Step-by-step solution

Before disposal, hence, sewage is treated in sewage treatment plants (STPs) to make it less polluting. Treatment of waste water is done by the heterotrophic microbes naturally present in the sewage.

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