oxygen cycle


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oxygen cycle

the PATHWAY followed by oxygen through the metabolism of organisms which leads back to the regeneration of any given organism.
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Repeated photosynthesis created an oxygen cycle that steadily increased concentrations of the compound and early plants were found to have contributed 30 percent of the oxygen found in our atmosphere.
Their emergence and evolution permanently increased the flux of organic carbon into sedimentary rocks, the primary source for atmospheric oxygen, thus driving up oxygen levels in a second oxygenation event and establishing a new, stable oxygen cycle," write the authors.
Among those disruptions, the most important involve the oxygen cycle.
Discussion of the processes involved in the closed oxygen cycle in VRLAB and the thermal phenomena leading to thermal runaway (TRA)