High Quality Content by WIKIPEDIA articles! Petroleum (L. petroleum, from Latin: petra rock + oleum oil) or crude oil is a naturally occurring, toxic, flammable liquid consisting of a complex mixture of hydrocarbons of various molecular weights, and other organic compounds, that are found in geologic formations beneath the Earth's surface. Petroleum is recovered mostly through oil drilling. It is refined and separated, most easily by boiling point, into a large number of consumer products, from gasoline and kerosene to asphalt and chemical reagents used to make plastics and pharmaceuticals.

Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.