. Air contains about 21% oxygen. When we breathe in air, some of the oxygen is used and carbon dioxide is produced. What happens to the NITROGEN in the air we breathe in? (a) It gets converted to proteins (b) It is also converted into CO2. (c) It comes out of the body unchanged. (d) Only the O2 in air is breathed in and CO2 is breathed out.
Answers
Answered by
1
Answer:
C
Explanation:
Nitrogen gas comes out of the body and changed without any reaction
Answered by
1
Answer:
(d)
Explanation:
d is answer
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