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Coal

en.wikipedia.org/wiki/Coal

Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins called coal beds or coal seams. The harder ...

Coal - Energy Explained, Your Guide To Understanding Energy ...

www.eia.gov/energyexplained/?page=coal_home

Coal is a combustible black or brownish-black sedimentary rock with a high amount of carbon and hydrocarbons. Coal is classified as a nonrenewable energy ...

Coal - U.S. Energy Information Administration (EIA)

www.eia.gov/coal/

Operating coal-fired generating capacity has declined 15% since 2011 in response to low natural gas prices and environmental regulatory compliance.

Coal | Department of Energy

www.energy.gov/coal

Coal. Coal is the largest domestically produced source of energy in America and is used to generate a significant chunk of our nation's electricity. The Energy ...

Coal - The New York Times

www.nytimes.com/topic/subject/coal

News about coal. Commentary and archival information about coal from The New York Times.

World Coal Association

www.worldcoal.org/

Welcome to World Coal Association, where you'll find information about coal, the environment, sustainable development, coal industry news, global coal facts ...

Coal - US Energy Information Administration - Department of Energy

www.eia.doe.gov/kids/energyfacts/sources/non-renewable/coal.html

Coal Headwear

www.coalheadwear.com/

Ebbets Field Flannels X Coal. View The Davis ... Return Policy · Terms & Conditions · About · Ambassadors · Contact · News · Stockists. Coal Headwear © 2016.

Coal - International Energy Agency

www.iea.org/topics/coal/

Coal is a variety of solid, combustible, sedimentary, organic rocks, formed from vegetation that has been consolidated between other rock strata and altered by ...

Coal | Environment | The Guardian

www.theguardian.com/environment/coal

NT government did secret coal deal a day before going into caretaker mode. Published: 23 ... Behemoth review – haunting descent into Mongolia's coal mines .

Answers
Coal is a combustible black or brownish-black sedimentary rock composed mostly of carbon and hydrocarbons. It is the most abundant fossil fuel produced in the United States.
The energy in coal comes from the energy stored by plants that lived hundreds of millions of years ago, when the Earth was partly covered with swampy forests.