MCQ
Which of the following statement is or are correct?
  • A
    Water that is fit for use and safe for drinking is known as clean water.
  • B
    The dissolved and suspended impurities present in water are called contaminants.
  • C
    The gas that is produced by decomposition of sludge by the anaerobic bacteria is known as biogas.
  • All the above.

Answer

Correct option: D.
All the above.
All the above.

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