CheaterHelperGurl
CheaterHelperGurl
12-09-2017
Biology
contestada
The air is 20% what?
Respuesta :
AJGreen
AJGreen
12-09-2017
About 20% of the air is oxygen.
Hope this helps! :)
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tiffers406ow6lw2
tiffers406ow6lw2
12-09-2017
20% oxygen gas and 80% nitrogen
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