Drag the phrase to indicate which fossil fuel it describes. A phrase may be used more than once.

coal | oil | natural gas |

formed at the bottom of swamps, formed at the bottom of the ocean where sediment, rock, and water apply pressure and heat, made mostly of methane, made mostly of hydrocarbons, sediment, rock, and water apply pressure and heat to plant remains.

1 answer

coal formed at the bottom of swamps, oil formed at the bottom of the ocean where sediment, rock, and water apply pressure and heat, natural gas made mostly of methane, oil made mostly of hydrocarbons, coal sediment, rock, and water apply pressure and heat to plant remains.