Assertion: carbon dioxide | /r/HasProperty | a trace gas
Facets:
value: in the atmosphere
type: LOCATION
Source sentences:
text: Carbon dioxide in earth's atmosphere is considered a trace gas currently occurring at an average concentration of about 385 parts per million by volume or 582 parts per million by mass.
text: Carbon dioxide in Earth's atmosphere is a trace gas, currently (start of 2020) having a global average concentration of 412 parts per million by volume (or 622 parts per million by mass).
text: Carbon dioxide (0.04%), nitrous oxide, methane and ozone are trace gases that account for almost one tenth of 1% of Earth's atmosphere and have an appreciable greenhouse effect.
text: Carbon dioxide (CO 2 ) is considered a trace gas in the atmosphere because it is much less abundant than oxygen or nitrogen.