Which of the following steps was necessary for the formation of all fossil fuels a the remains of plants and animals are buried at the bottom of oceans b carbon bonds break producing methane gas c the remains of plants and animals are buried at the bottom of swamps the heat and pressure build up on top of decaying matter

1 answer

The correct step that is necessary for the formation of all fossil fuels is:

c) the remains of plants and animals are buried at the bottom of swamps, and the heat and pressure build up on top of decaying matter.

This process is known as the formation of fossil fuels, where organic material (like plant and animal remains) is subjected to heat and pressure over millions of years, leading to the formation of coal, oil, and natural gas. While the other options provide context around the processes involved, burial and the subsequent geological processes are essential to fossil fuel formation.