| http://www.w3.org/ns/prov#value | - ??? ??? ??? astronomy study of objects beyond Earth's atmosphere ??? ??? ??? atmosphere blanket of gases surrounding Earth that contains about 78 percent nitrogen, 21 percent oxygen, and 1 percent other gases such as argon, carbon dioxide, and water vapor ??? ??? ??? biosphere all of Earth's organisms and the environments in which they live ??? ??? ??? environmental science study of the interactio
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