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52. What is amount of oxygen in the atmosphere interms of volume? |
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Answer» By volume, dry AIR contains 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases. Air ALSO contains a VARIABLE amount of water vapor, on AVERAGE around 1% at sea level, and 0.4% over the entire atmosphere. |
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