Fossil fuels are nonrenewable resources. They are nonrenewable because they take millions of years to form. Earth’s oil took 500 million years to form. Fossil fuels are formed from the remains of organisms. Fossil fuels are rich in energy. Coal is formed from plant remains that have been buried for millions of years. Coal is the fuel used in many electrical power plants. Oil is a thick, black, liquid fossil fuel. Oil forms from the remains of ocean organisms. Petroleum is another name for oil. Natural gas is a mixture of gases. Natural gas forms from the remains of ocean organisms.
How are fossil fuels created?