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Biology
Pollution
Elements and Compounds
Photosynthesis

What is the source of carbon dioxide?

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September 22, 2011 6:50AM

Carbon dioxide (chemical formula CO2) is a naturally occurring chemical compound composed of two oxygen atoms covalently bonded to a single carbonatom. It is a gas at standard temperature and pressure and exists in Earth's atmosphere in this state, as a trace gas at a concentration of 0.039% by volume.