Assertion: nitrogen | /r/PartOf | 78% of the atmosphere
Facets:
value: by volume
type: OTHER
Source sentences:
text: Nitrogen is one of the most abundant elements on Earth - it makes up 78% of the atmosphere, 16% of all protein diets, and is present at a concentration of 7.5 kilograms for every 250 kilograms of human feces.
text: Nitrogen makes up about 78% of the atmosphere by volume but the atmosphere of Mars contains less than 3% nitrogen.