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274

Q:

वायुमंडल में कितने प्रतिशत ऑक्सीजन मौजूद है?

  • 1
    39%
  • 2
    79%
  • 3
    10%
  • 4
    21%
  • Show Answer
  • Workspace

Answer : 4. "21%"
Explanation :

Oxygen is present as 21% of the total volume of the atmosphere.

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