Final answer:
Mineral oils are made from crude petroleum, which is a nonrenewable resource. Crude petroleum consists of hydrocarbon chains of various lengths, and during the refinement process, these chains are separated to produce different products.
Step-by-step explanation:
Mineral oils are made from crude petroleum. Crude petroleum, also known as crude oil, is a nonrenewable resource extracted from the ground. It consists primarily of hydrocarbon chains of various lengths, and the process of refinement separates these chains to produce different products such as gasoline, kerosene, diesel fuel, lubricants, and tar.