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fossil fuel

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noun Energy.
  1. any combustible organic material, as oil, coal, or natural gas, derived from the remains of former life.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for fossil fuels

fossil fuel

noun
  1. any naturally occurring carbon or hydrocarbon fuel, such as coal, petroleum, peat, and natural gas, formed by the decomposition of prehistoric organisms
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

fossil fuels in Science

fossil fuel

  1. A hydrocarbon fuel, such as petroleum, coal, or natural gas, derived from the accumulated remains of ancient plants and animals and used as fuel. Carbon dioxide and other greenhouse gases generated by burning fossil fuels are considered to be one of the principal causes of global warming.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

fossil fuels in Culture

fossil fuels

Coal, petroleum, and natural gas.

Note

All of these fuels were formed from the remains of plants and animals that lived millions of years ago.

Note

All fossil fuels produce carbon dioxide when burned. (See greenhouse effect.)

Note

Burning fossil fuels is a main cause of air pollution.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.