Assertion: methane | /r/HasProperty | natural gas
Facets:
Source sentences:
text: Methane (natural gas) reacts with the oxygen in the atmosphere to produce carbon dioxide and water vapor.
text: Methane is a natural gas produced by many life forms and it also seeps naturally from marshes, oceans, tundras, oil seeps and coal seams.
text: The combustion of all carbon-based fuels, such as methane (natural gas), petroleum distillates (gasoline, diesel, kerosene, propane), coal, wood and generic organic matter produces carbon dioxide and, except in the case of pure carbon, water.
text: Methane (natural gas) wasn’t commonly in use until the 19th century