DR TIM EVANS / SCIENCE PHOTO LIBRARY DR TIM EVANS / SCIENCE PHOTO LIBRARY
Carbon dioxide. Computer-generated molecular model of carbon dioxide (CO2). Carbon dioxide comprises one central carbon atom (black) connected to two oxygen atoms (red). Carbon dioxide is a colourless gas at room temperature. It occurs naturally in the atmosphere and has an important role in animal and plant respiration.
Model release not required. Property release not required.