A

Admin • 596.21K Points
Coach

Q. Oxygen percentage (by weight) in atmospheric air is

  • (A) 19
  • (B) 21
  • (C) 23
  • (D) 29

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.