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Originally Posted by Deznutjob
OK first of all cold air contains more moisture than warm air and there is a higher oxygen content in cold air.  |
Both of these statements are false. The lower the temperature of the air, the less moisture it can contain. This is why the high mountains and polar regions of the earth are also the most arid. The cold air cannot hold moisture as well as warm air. This is also why we experience rain...as warm, humid air rises, it cools and the water vapor condenses into rain drops.
The oxygen content of cold and warm air is exactly the same...roughly 21%. However, cold air is more dense, so a given volume of cold air will contain more oxygen molecules than warm air. The oxygen content doesn't change with temperature...only the density.