what gas is used by animals and plants in their respiration (breathing) process?
A.oxygen
B.carbon
C.nitrogen
D.helium
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what gas is used by animals and plants in their respiration (breathing) process?
A.oxygen
B.carbon
C.nitrogen
D.helium
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Answer:
A.oxygen
Explanation:
because i search it
oxygen gas
Explanation:
when an animal breathes it takes in oxygen gas and releases carbon dioxide gas into the atmosphere