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en.wikipedia.org/wiki/Natural_gas

Natural gas is a naturally occurring hydrocarbon gas mixture consisting primarily of methane, .... Town gas is a flammable gaseous fuel made by the destructive distillation of coal. It contains a variety of calorific gases including hydrogen, carbon ...

www.ucsusa.org/clean-energy/coal-and-other-fossil-fuels/how-is-natural-gas-formed

This comprehensive overview explains the basics of how natural gas is formed and where it can be found in the United States and around the world.

www.alliantenergykids.com/EnergyBasics/AllAboutNaturalGas/000511

How Natural Gas Is Made. The natural gas that we use to heat our homes and our water comes from deep under the earth. The gas is found in layers of rock with ...

www.ct.gov/pura/cwp/view.asp?a=3363&q=414224

Abstract: One theory is that natural gas was formed millions of years ago when ... Another theory proposes that the earth is made up of primordial materials that ...

www.ems.psu.edu/~pisupati/ACSOutreach/Natural_Gas.html

In 2006, the U.S. consumed about 22 trillion cubic feet of natural gas (21% of the world total), compared to 105 trillion cubic feet worldwide. The U.S. produced ...

www.nationalgeographic.org/encyclopedia/natural-gas

Jul 24, 2012 ... Methane, probably the most abundant organic compound on Earth, is made of carbon and hydrogen (CH4). Natural gas deposits are often ...

naturalgas.org/overview/background

Sep 20, 2013 ... Natural gas is a combustible mixture of hydrocarbon gases. ... Methane is a molecule made up of one carbon atom and four hydrogen atoms, ...

www.madehow.com/Volume-6/Natural-Gas.html

Natural gas is a mixture of combustible gases formed underground by the decomposition of organic materials in plant and animal. It is usually found in areas ...

www.nwnatural.com/Safety/GasEducation/TheStoryOfNaturalGas

Natural gas is composed mostly of methane, but it also contains small amounts of ethane, propane, butane, and pentane. Methane, a combination of hydrogen ...