Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
fossil fuel | Yes | No | No | No |
natural gas | Yes | No | No | No |
fossil fuel (noun) | natural gas (noun) |
---|---|
fuel consisting of the remains of organisms preserved in rocks in the earth's crust with high carbon and hydrogen content | a fossil fuel in the gaseous state; used for cooking and heating homes |