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NEET2011ZoologyMicrobes in Human WelfareActual

Which of the following is mainly produced by the activity of anaerobic bacteria on sewage?

Options

  1. APropane
  2. BMustard gas
  3. CMarsh gas
  4. DLaughing gas

Correct answer

C. Marsh gas

Step-by-step solution

The decomposition of sludge by anaerobic bacteria in sewage-treatment processes produces marsh gas (methane).

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