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).
Other important skills that employers seek in new employees are research and analytical skills. Some employers often require employees to conduct market research for new products or production research to keep production costs low and profits high and determine what is in demand on the market. Rather than taking everything at face value, employees must be analytical and test all information found in the research.