EntityQ4147614· pop 7· linked from 49 articlesoxygen evolutionSign in to savethe process of generating molecular oxygen through chemical reactionConnectionsoxygen-evolving complexEntityEarthConceptwaterEntityplantEntityhydrogenEntityuniverseEntitylifeEntityoxygenEntitylightEntitynitrogenEntitycalciumEntityelectronEntityphotosynthesisEntityInternational Standard Book NumberEntitymanganeseEntityprotonEntityeukaryoteEntitychemical compoundEntityatmosphere of EarthEntitychemical reactionEntityCategoriesBiological evolutionBreathing gasesOxygenPhotosynthesis