where does air come from

Since 500 millions years ago oxygen has been the 21% of our air. As I remember, it is the common misconception that woods are responsible for the oxygen we inhale, while in reality woods consume nearly the same amount of oxygen they produce, and the main source of oxygen on Earth comes from plankton.

To say is short, It is natural

Hope it helped !!
  • 0
Oxygen is one of the primary components that allows air to be breathable to people and it began forming in the atmosphere approximately one billion years ago.
  • 0

air comes from the atmosphere approximately billion years ago
  • 0
What are you looking for?