Compressed air

Sport: Scuba Diving

Describes breathing gas used by the majority of scuba divers. It is ordinary air compressed to high pressure, and is made up of 79 percent nitrogen and 21 percent oxygen.

Browse Our Popular Sports

  1. American Football
  2. Baseball
  3. Basketball
  4. Cricket
  5. Fencing
  6. Figure Skating
  7. Fishing
  8. Golf
  9. Horse Racing
  10. Ice Hockey
  11. Judo
  12. Skiing
  13. Soccer
  14. Swimming
  15. Tennis