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EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN
Definition:
A colorless, odorless, gaseous element, constituting 21 percent of the volume of the atmosphere, and essential for aerobic forms of life. Gaseous oxygen has a chemical formula of O2. Dissolved oxygen is included as a detailed variable under Oxygen.
Reference:
Adapted from:
  • Porteous, A. 1996. Dictionary of Environmental Science and Technology. John Wiley and Sons. p. 392.
  • Websters College Dictionary. 1991. Random House.
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