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fossil fuel - Coggle Diagram
fossil fuel
coal
formed because of the great heat and pressure applied on the dead and decaying plant matter over millions of years
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carbonization
carbonization is a natural process that transforms dead vegetation into coal over the course of millions of years { the older the coal is the higher carbon content is }
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petroleum
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formation of petroleum
when sea organisms die their bodies sink to the bottom and over time they get covered with sand and clay, over millions of years these remains transform into petroleum and natural gas due to great pressure and absence of air.
CNG emits 50% less co2 , sulphur , nitrogen oxide
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