A chauffeur refers to an individual who drives people around for a living. An individual will be required to be fingerprinted before acquiring a chauffeur's licence in New York. An individual may be required to pass a defensive driving course before acquiring a chauffeur's license. In some states, the type of chauffeur license needed will depend on the number of people being transported. In New York, a chauffeur license is a Class E license, which is a taxi license.
Biological magnification (or biomagnification) is the buildup of certain substances, such as DDT, in the bodies of organisms at higher trophic levels of food webs. DDT was once used extensively as an insecticide. DDT builds up in the fatty tissues of organisms.
Magnification. In order to ascertain the total magnification when viewing an image with a compound light microscope, take the power of the objective lens which is at 4x, 10x or 40x and multiply it by the power of the eyepiece which is typically 10x.