ALFRED PASIEKA / SCIENCE PHOTO LIBRARY ALFRED PASIEKA / SCIENCE PHOTO LIBRARY
Carbon dioxide. Computer graphic of a molecule of carbon dioxide (CO2). The dotted spheres are a Van Der Waals representation of atoms. The carbon dioxide molecule is a linear line of atoms, with one central carbon atom (yellow) and two oxygen atoms (red). Carbon dioxide is a colourless gas at room temperature, occurring naturally in the atmosphere and playing an important role in animal and plant respiration.
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