A

Admin • 687.79K Points
Coach

Q. वायुमण्डल में ऑक्सीजन की मात्रा कितनी होती है

  • (A) 18%
  • (B) 21%
  • (C) 78%
  • (D) 39%

No solution found for this question.
Add Solution and get +2 points.

You must be Logged in to update hint/solution

Discusssion

Login to discuss.

Be the first to start discuss.