Athlete's foot is caused by a microscopic fungus that lives on dead tissue of the hair, toenails, and outer skin layers. There are at least four kinds of fungus that can cause athlete's foot.
Work. In order to accomplish work on an object there must be a force exerted on the object and it must move in the direction of the force. Energy is required to do work and the basic SI unit of energy is the joule, the amount of energy required to exert a force of 1 Newton through a distance of 1 meter (1 joule = 1 newton meter).
WHAT ARE THE EDUCATION REQUIREMENTS? Math skills are key to this job, and most companies want at least a bachelor's degree in market research or a similar field, such as math, statistics or computer science. Some companies might require a master's degree. Certification is available, but not required.