How long can a human breath pure oxygen????

Subject: How long can a human breath pure oxygen????

Date: Wed Apr 2 22:02:46 1997
Posted by: Jake Campagne
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Grade level: 7-9
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Area of science: General Biology
Message ID: 860040166.Gb

Message:

How long can a human breath pure oxygen????
We learned in school that people need nitrogen and get 
most of it from the air.

Re:How long can a human breath pure oxygen????

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