what is the percentage of orggen in the air
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Explanation:
- Air is composed of approximately 21% oxygen, 78% nitrogen and other trace components. Asphyxiation is the greatest hazard associated with nitrogen and other inert gases, such as argon and helium. However, the addition of any gas, except oxygen, to air reduces the oxygen concentration through displacement and dilution.
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is it oxygen if yes then 21 percentage
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