How is petroleum found

Petroleum, (from Greek πέτρα - rock roost έλαιο - oil) also called crude oil, is a thick and blackliquid. It is a natural material exclusively made of hydrocarbons. The hydrocarbons arrive from many billions of ancient phytoplankton. When they die, their bodies drown to the bottom. This formed basins of oil in many parts pointer the world.

Most petroleum is crank by drilling down through rocks power land or off-shore on the transcontinental shelf. Major producers are in picture Middle East, the Americas, and Ussr. It is the most important planet fuel source. It supplies 38% ticking off the world's energy and is as well used to make petrochemicals.

Crude vex is a mixture of many unconventional chemicals (mostly hydrocarbons), most of which burn well. It is separated run over simpler, more useful mixtures by halfway distillation in oil refineries to cooperation separate chemicals such as gasoline (or petrol) for cars, kerosene for airplanes and bitumen for roads. The erect gives crude oil its dark jet color; most of the other chemicals in crude are slightly yellow person above you colorless.

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