Seudónimo
Seudónimo
30-05-2017
Biology
contestada
what is 99.9 percent of the air we breathe?
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Tallon
Tallon
30-05-2017
oxygen i think
hope this helps
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MMMski
MMMski
30-05-2017
I believe most of what we breathe is nitrogen and oxygen. There are small amounts of other gases as well, but the air we breathe is primarily made up of oxygen and nitrogen.
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