davidmaseradi7714
davidmaseradi7714 davidmaseradi7714
  • 07-12-2020
  • Biology
contestada

is there less oxygen out of us than in us

Respuesta :

20021667 20021667
  • 07-12-2020

Answer: more out of us

Explanation:well we breath 21 % of oxygen so that means their is more out of us

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