Assertion: carbon dioxide | /r/AtLocation | the air
Facets:
value: naturally
type: MANNER
Source sentences:
text: Carbon dioxide is present in the air we breathe everyday, although concentrations are so miniscule (around 0.04%), monitoring is not needed everywhere.
text: You probably know carbon dioxide is a gas that is present in the air you breathe.
text: Carbon dioxide (CO2) is a colorless gas that is naturally present in the air as a result of the natural carbon cycle of our planet.
text: Carbon dioxide is present in the air we breathe every day, although concentrations are so minuscule (around 0.04%), monitoring is not needed everywhere.