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.
Oil and gas are used as fuel energy in combustion engines and as feed stock for other industries raw materials for the manufacture of other chemicals, such as plastics and agricultural fertilizer. There is a limited amount of fossil fuel. It is not renewable and there is no known way to make more.