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| − | '''Biofuel''' (pronounced bye-oh-FYOOL) is fuel made up of biological raw materials, such as [[wood]] or [[ethanol]]. This type of fuel is considered to be more friendly to the environment.<ref>http://www.alternative-energy-news.info/technology/biofuels/</ref>. The main type of biofuel available in America is corn-based ethanol. This is added to gasoline as an anti-knock compound. It replaces previously used compounds like tetramethyl lead and MTBE.
| + | #redirect[[Biofuels]] |
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| − | Some biotechnology companies are pursuing techniques to produce gasoline from algae<ref>http://www.sapphireenergy.com</ref>.
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| − | == References ==
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| − | <references/>
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| − | [[Category:Environmentalism]]
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| − | [[category:energy]]
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