Assertion: methane | /r/CapableOf | enter the atmosphere
Facets:
Source sentences:
text: Methane enters the atmosphere from both natural (30 percent) and anthropogenic (70 percent) sources.
text: Methane that enters the atmosphere takes about 12 years to break down — it is mostly removed from the air by chemical reactions with other compounds.
text: Methane that enters the atmosphere takes about 12 years to break down — it is mostly removed from the air by chemical reactions with other compounds.