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What are the advantages of using cng and lpg as fuels. Dec 26, 2016 coal coal is a combustible,sedimentary, organic rock, formed from vegetation. Free pdf download best collection of cbse topper notes, important questions, sample papers and ncert solutions for cbse class 8 science coal and petroleum. Coal and petroleum for class 8 l2 ncert science chapter. Coal gas was used for street lighting for the first time in london in 1810 and in new york around 1820. Aug 27, 2012 cbse class 8 science coal and petroleum coal and petroleum. Coal and petroleum class 8 notes, question answers.
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