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  • Waste Water Story-II
  • Which of the following techniques is not used to improve ...
Multiple choice

Which of the following techniques is not used to improve sanitation?

  1. Onsite sewage disposal

  2. Vermin processing toilets

  3. Compositing pits

  4. Underground sewage system

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Underground sewage system is not used to improve sanitation.

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