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OpenStudy (victoriathebear):
In addition to being necessary for respiration, _______ also provides UV radiation protection. A. water (B.) carbon dioxide C. oxygen D. hydrogen carbon dioxide?
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OpenStudy (abhisar):
Do u need carbon dioxide for respiration ?
OpenStudy (victoriathebear):
oxygen....
OpenStudy (abhisar):
and ozone is O\(_3\)
OpenStudy (abhisar):
so the answer is ?
OpenStudy (victoriathebear):
oxygen.
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OpenStudy (abhisar):
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