The atmosphere's diatomic oxygen (O2) can regenerate thanks to THE OXYGEN CYCLE. About 21% of the atmosphere is made up of oxygen.
How is pure oxygen created?
The separation of air using either a cryogenic distillation process or a vacuum swing adsorption technique is the most popular commercial method for creating oxygen. Separating them from air also yields nitrogen and argon.
Can people breathe oxygen one?
No. All forms of life are very poisonous to the oxygen radical (O•). Although it is still created in very small amounts by live cells, we have specific enzymes to handle it.
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