Web Results

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 - 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 Headwear

www.coalheadwear.com/

Special Edition · EBBETS FIELD x COAL · Field Team Badges · COAL x DDC x USA KIT · Limited Edition · Red Fang Collection ... Coal Headwear LLC.

EIA Energy Kids - Coal - US Energy Information Administration

www.eia.gov/KIDS/energy.cfm?page=coal_home-basics

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 | Department of Energy

energy.gov/coal

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

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 - 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 - IER

instituteforenergyresearch.org/topics/encyclopedia/coal/

Coal is a concentrated form of prehistoric biomass in the form of plant life and is the most abundant fossil fuel produced in the United States. Over 90 percent of ...

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.

coal | fossil fuel | Britannica.com

www.britannica.com/science/coal-fossil-fuel

Jun 10, 2016 ... Coal, solid, usually brown or black, carbon-rich material that most often occurs in stratified sedimentary deposits. It is one of the most important ...

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.