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The waste product of photosynthesis is:

A. oxygen
B. nitrogen
C. phosphorous
D. carbon dioxide

2 Answers

7 votes
Photosythesis uses carbon dioxide to make oxygen

Therefore oxygen is the waste product of photosynthesis
User Idoimaging
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5 votes
Answer is Oxygen!
Plants take in Carbon Dioxide and expel Oxygen!
I hope I helped! ♥
User Claes Wikner
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