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  • 5. Pollution of Air and Water(8)
  • Most of rivers in india are polluted due to
Multiple choice

Most of rivers in india are polluted due to

  1. Addition of organic wastes

  2. Presence of fish and frog

  3. Absence of oxygen

  4. Addition of untreated sewage

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

fact

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