write paragraph on petroleum.
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a liquid mixture of hydrocarbons which is present in suitable rock strata and can be extracted and refined to produce fuels including petrol, paraffin, and diesel oil; oil.Petroleum literally means 'rock oil'. The word comes from the Greek word 'petra' (meaning 'rock') and the Latin word 'oleum' (meaning 'oil'). The word petrol is a shortened version of 'petroleum'. Petroleum products are all the substances made from crude oil. Find out about crude oil and its useful products.The liquid material used to make asphalt (and what contributes to that offensive smell) is called petroleum. Petroleum is a liquid found deep within the Earth's surface. ... The petroleum you see when you drill down will either flow out as a liquid (oil) or escape into the air as a gas.Petroleum is a term that includes a wide variety of liquid hydrocarbons. Many scientists also include natural gas in their definition of petroleum. The most familiar types of petroleum are tar, oil, and natural gas.A fossil fuel, petroleum is formed when large quantities of dead organisms, mostly zooplankton and algae, are buried underneath sedimentary rock and subjected to both intense heat and pressure. Petroleum has mostly been recovered by oil drilling (natural petroleum springs are rare).Gasoline is made from crude oil. The crude oil pumped out of the ground is a black liquid called petroleum. This liquid contains hydrocarbons, and the carbon atoms in crude oil link together in chains of different lengths.What are petroleum products, and what is petroleum used for? Petroleum products include transportation fuels, fuel oils for heating and electricity generation, asphalt and road oil, and feedstocks for making the chemicals, plastics, and synthetic materials that are in nearly everything we use.
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Petroleum 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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