17)Breathing comprises of: (a)Inhaling O2 rich air and exhaling CO2 rich air. (b) Inhaling CO2 rich air and exhaling O2 rich air. (c) Only inhaling O2 rich air (d) Only exhaling CO2 rich air.
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Answered by
2
Answer:
Answer is A part...
Explanation:
Because we can Inhale Oxygen(O2)
and exhale carbon dioxide(CO2)...
Hope it helps you....Plz mark this amswer as brainliest...
Answered by
1
Answer:
inhaling O2 Rich air and exhaling CO2 rich air
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