Assertion: xenon | /r/AtLocation | slight traces
Facets:
value: in gases within earth
type: LOCATION
Source sentences:
text: Xenon occurs in slight traces in gases within Earth and is present to an extent of about 0.0000086 percent, or about 1 part in 10 million by volume of dry air.
text: Xenon occurs in slight traces in gases within the Earth and is present to an extent of about 0.0000086 percent, or about one part in 10,000,000, by volume of dry air.