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Presentation and question about oxygen

Presentation and question about oxygen - Biology Forum

Presentation and question about oxygen - Biology Forums. Ask questions and discuss the study of Biology. If you have Biology questions from your homework ask them here!


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Old 03-12-2014, 08:54 AM
Pipette Filler
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Default Presentation and question about oxygen



Dear friends,

First of all, I would like to say: hello everybody and thank you for your help!!..

My name is Miguel and I am writing from Spain. I would like to make a simple question. As you know, in the air there is 20% of oxygen (approximately), so, how much is the minimum oxygen needed by the human body to not suffocate?. Maybe, 10%, 5% or 2%?

Thank you.
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