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OpenStudy (sammietaygreen):

Does the oil have to be changed or processed before it can be used by people or machines?

OpenStudy (anonymous):

Absolutely. Raw petroleum forms the basis for everything such as gasoline, jet fuel, motor oil, and even many plastics making it one of the most valuable, and controversial, fossil resources in the world.

OpenStudy (sammietaygreen):

Thank you! I'm writing a essay about oil. it's actually interesting.

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