Geography, 25.12.2019 01:31 flowersthomas1969

What is crude oil (petroleum) and how is it extracted from the earth and refined? what percentages of the commercial energy used in the world and in the united states are provided by crude oil? what is the peak pro- duction for an oil well and for the world? what is a petrochemical and why are such chemicals important? what are proven oil reserves? describe the two types of unproven reserves. discuss the question of how long global and u. s. supplies of conventional crude oil might last. what are the major advantages and disadvantages of using conventional crude oil?

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What is crude oil (petroleum) and how is it extracted from the earth and refined? what percentages...

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