Drugs are chemicals. Different drugs, because of their chemical structures, can affect the body in different ways. In fact, some drugs can even change a person's body and brain in ways that last long after the person has stopped taking drugs, maybe even permanently.
USED OIL is defined as any oil that has been refined from crude oil, or any synthetic oil, that. has been used and as a result, is contaminated by physical or chemical impurities. If you do, use the information in this publication to help make the best choices in managing them.
Crude oil is also used in cosmetics and medicines. Because the supply of crude oil is limited but demand is constantly increasing, the price of oil is also continuously rising. Because crude oil is needed to manufacture other primary materials, it is the worldâs most important commodity.