Fuel for Thought
The beginnings of what we call “fossil fuels,” because the original ingredients are ancient organisms:
Coal is the remains of plants that lived near swamps in humid regions millions of years ago.
Oil is the remains of ancient algae, plankton, and bacteria which got buried under rock.
The same ingredients and conditions that create oil also create natural gas, also known as methane or CH4. Oil and gas are often found together when drilling.