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व्हाट डस कंबशन ऑफ फ्यूल्स ए टू द इंवॉल्वमेंट​

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Petroleum (pronounced /pəˈtroʊliəm/) is a naturally occurring, yellowish-black liquid found in GEOLOGICAL formations beneath the Earth's surface. It is commonly refined into VARIOUS TYPES of fuels. Components of petroleum are separated using a technique called fractional distillation, i.e. separation of a liquid mixture into fractions DIFFERING in boiling POINT by means of distillation, typically using a fractionating column.



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