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Carbon dioxide: Difference between revisions
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'''Carbon dioxide''' (chemical formula: CO<sub>2</sub>) is a chemical compound composed of two [[oxygen]] atoms covalently bonded to a single carbon atom. It is a gas at standard temperature and pressure and exists in [[Earth]]'s atmosphere in this state. It is currently at a globally averaged concentration of approximately 383 ppm by volume in the Earth's atmosphere, although this varies both by location and time. Carbon dioxide is an important greenhouse gas because it transmits visible light but absorbs strongly in the infrared. | '''Carbon dioxide''' (chemical formula: CO<sub>2</sub>) is a chemical compound composed of two [[oxygen]] atoms covalently bonded to a single carbon atom. It is a gas at standard temperature and pressure and exists in [[Earth]]'s atmosphere in this state. It is currently at a globally averaged concentration of approximately 383 ppm by volume in the Earth's atmosphere, although this varies both by location and time. Carbon dioxide is an important greenhouse gas because it transmits visible light but absorbs strongly in the infrared. | ||