Respiration is a chemical change.
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42
Answer:
Yes, respiration is a chemical change. Oxygen is taken during the respiration,the output should be also the oxygen in order to make it a physical change. ... That's why it is considered as a chemical reaction where the initial compound is oxygen and final compound is carbon dioxide.
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10
Answer:
Because in this process the food gets oxidize and once it gets oxidize it can't turn back into food again
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