Question:

Which is bad for yor body O2,Co2,NaCi?

by Guest33489  |  earlier

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Which is bad for yor body O2,Co2,NaCi?

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  1. CO2 (carbon dioxide) is poisonous to humans.  O2 (oxygen) and NaCl (sodium chloride, or table salt) are necessary for humans to live.


  2. i'm going to assume you didn't know that 02= oxygen...PLEASE let that be the truth....otherwise I'm sincerely worried.

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