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Petroleum (L. petroleum, from Greek: petra (rock) + Latin: oleum (oil)) or crude oil is a naturally occurring, flammable liquid consistin... -
1. Gasoline with octane number 75, means. . . a. Gasoline is composed of 75% isooktana and 25% hexane. b. Gasoline is composed of...
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1. Petroleum is formed over thousands of years comes from a. Dinosaurs d. plankton and plants b....
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