Final answer:
Wrapping a doorknob in aluminum foil in clinical settings helps prevent the transmission of microbes and maintain a clean environment.
Step-by-step explanation:
Wrapping a doorknob in aluminum foil is a common practice in clinical settings to prevent the transmission of microbes. Aluminum foil has antimicrobial properties and can effectively kill certain bacteria and viruses. By wrapping a doorknob in aluminum foil, it creates a barrier that reduces the spread of pathogens from one person to another.
Some common examples of surfaces that are wrapped in aluminum foil include doorknobs, light switches, and other frequently touched areas in hospitals or clinics. This practice is particularly important in healthcare settings to maintain a clean and sterile environment.