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which two gases are present in maximum quantity in the air that we exhale?

The average composition of exhaled air in respiration is 

  • Oxygen 16.5%
  • Carbon dioxide 4.0%
  • Nitrogen and Argon 79.5%

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  PROBABLY  WE  EXHALE  A  LARGE  QUANTITY  OF  NITROGEN  AND  OXYGEN.  CARBON  DIOXIDE  IS  ALSO  EXHALED  IN  SOME  QUANTITIES

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atmosphere contains 78 percent nitrogen and 21 percent oxygen in maximum quantity that we exhale

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