What's oxygen? -- In the atmosphere -- Photosynthesis -- respiration -- Decomposition -- Combustion -- Oxidation -- In the lithosphere -- Weathering -- In the hydrosphere -- The carbon cycle -- Photolysis -- Breathe it in! -- Steps of the oxygen cycle.
Summary:
Oxygen is essential to life on Earth. It's produced through photosynthesis and moves through human bodies, water, and Earth's atmosphere. How exactly does that work? Through accessible language and full-color diagrams and photographs, this book explains the oxygen cycle
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.