air
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Introduction
A mixture of odourless gases found in the atmosphere in the following approximate percentages by volume after water vapor has been removed.
gas | % in atmosphere |
---|---|
Oxygen | 20.95 |
Nitrogen | 78.08 |
Argon | 0.93 |
Carbon dioxide(CO2) | 0.03 |
Other gases | 0.01 |
More specific terms
References
- ↑ Stedman's Medical Dictionary 27th ed, Williams & Wilkins, Baltimore, 1999.