<https://data.globalchange.gov/gcmd_keyword/61f4f3d0-7895-4cce-94e3-d249001d5ee8> <http://purl.org/dc/terms/identifier> "61f4f3d0-7895-4cce-94e3-d249001d5ee8" .
<https://data.globalchange.gov/gcmd_keyword/61f4f3d0-7895-4cce-94e3-d249001d5ee8> <http://www.w3.org/2000/01/rdf-schema#label> "MOLECULAR OXYGEN"^^<http://www.w3.org/2001/XMLSchema#string> .
<https://data.globalchange.gov/gcmd_keyword/61f4f3d0-7895-4cce-94e3-d249001d5ee8> <http://purl.org/dc/terms/description> "Oxygen (O2) is found on Earth as a gas and constitutes about 20.8% of the\nair we breathe. Elemental molecular oxygen consists of two oxygen atoms\nbonded together. A photochemical reaction of oxygen is (ultimately)\nresponsible for the production of ozone in the stratosphere. Oxygen\nconcentrations found in ice core samples have been used to determine past\natmospheric levels of oxygen and helped in determining past climates.\n[Nature; v351; 217-219; 1991.] [Nature; v365; 143-147; 1993.]"^^<http://www.w3.org/2001/XMLSchema#string> .
<https://data.globalchange.gov/gcmd_keyword/61f4f3d0-7895-4cce-94e3-d249001d5ee8> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/resource/Index_term> .