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What are Fossil Fuels?
Fossil fuels come from the buried carbon-rich remnants of ancient animals and plants. It takes millions of years for the force of pressure within the Earth's crust to convert fossils into oil, natural gas and coal. Though they have been used throughout... More »
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en.wikipedia.org/wiki/Fossil_fuel

A fossil fuel is a fuel formed by natural processes, such as anaerobic decomposition of buried dead organisms, containing energy originating in ancient ...

energy.gov/science-innovation/energy-sources/fossil

Over millions of years, different types of fossil fuels formed -- depending on what combination of organic matter was present, how long it was buried and what ...

www.britannica.com/science/fossil-fuel

Fossil fuels include coal, petroleum, natural gas, oil shales, bitumens, tar sands, and heavy oils. All contain carbon and were formed as a result of geologic ...

www.sciencedaily.com/terms/fossil_fuel.htm

Fossil fuels are hydrocarbons, primarily coal, fuel oil or natural gas, formed from the remains of dead plants and animals. In common dialogue, the term fossil fuel  ...

belco.bm/index.php/education-85/what-are-fossil-fuels

Fossil fuels are formed over millions of years from the fossils, or remains, of dead animals and plants that were buried under dirt and rock. Heat from inside the ...

www.eesi.org/topics/fossil-fuels/description

Fossil fuels, including coal, oil and natural gas, are currently the world's primary energy source. Formed from organic material over the course of millions of years  ...

needtoknow.nas.edu/energy/energy-sources/fossil-fuels

The United States gets 81% of its total energy from oil, coal, and natural gas, all of which are fossil fuels. We depend on those fuels to heat our homes, run our ...

instituteforenergyresearch.org/topics/encyclopedia/fossil-fuels

Fossil fuels—coal, petroleum (oil), and natural gas — are concentrated organic compounds found in the Earth's crust. They are created from the remains of ...

study.com/academy/lesson/what-are-fossil-fuels-definition-advantages-disadvantages.html

Fossil fuels are sources of energy that have developed within the earth over millions of years. Because fossil fuels - oil, natural gas, and coal -...