Quick Answer. Color intensity refers to how bright or dull a color looks, according to Art Studio Chalkboard. This term is most often used in art and photography but can also have other applications. Bright colors are considered more pure, while dull colors can appear indistinguishable or gray.
A drug is a chemical substance that can change how your body and mind work. Drugs of abuse are substances that people use to get high and change how they feel. They may be illegal drugs like marijuana, cocaine, or heroin. Or they may be legal for adults only, like alcohol and tobacco.
Therapeutic or pharmaceutical drugs are commonly called medications, medicine, pills, or just drugs. There are many sources of drugs and many resources are readily available to help identify, dispense, and administer medications competently, safely, and in accordance with the law.rugs are derived from the following four main sources: 1  Plant sources: Obtained from plant parts or products. 2  Seeds, stem, roots, leaves, resin, and other parts yield these drugs. 3  Examples include digitalis and opium.