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1002

Q: Water pollution of a river is measured by_______

  • 1
    Amount of chlorine dissolve in water
  • 2
    Amount of Ozone dissolve in water
  • 3
    Amount of nitrogen dissolve in water
  • 4
    Amount of oxygen dissolve in water
  • Show Answer
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Answer : 4. "Amount of oxygen dissolve in water"
Explanation :

Answer: D) Amount of oxygen dissolve in water Explanation:

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