About: http://webisa.webdatacommons.org/454534123

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Air still contains 12 million million molecules in each cubic centimeter, but up to this height, its composition has remained about the same--78% nitrogen, 21% oxygen, nearly 1% of argon, some 0.1% carbon dioxide and other gases.
http://www.w3.org/ns/prov#wasQuotedFrom	nasa.gov