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The oxygen that we breathe is a waste product of what reaction? A.Metamorphosis B.Photosynthesis

User EddieBytes
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Answer:

B. Photosynthesis

Step-by-step explanation:

Plants take in carbon-dioxide and convert it into glucose, or sugar that the plant uses as food. During photosynthesis, oxygen is created as a byproduct

User Lex Valyaev
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