Final answer:
During the hand washing process, it is recommended to scrub for at least 20 seconds. An easy way to time this is to hum the "Happy Birthday" song from beginning to end twice. Scrubbing for the appropriate amount of time ensures that you are effectively removing germs and bacteria from your hands.
Step-by-step explanation:
During the hand washing process, it is recommended to scrub for at least 20 seconds.
An easy way to time this is to hum the "Happy Birthday" song from beginning to end twice.
Scrubbing for the appropriate amount of time ensures that you are effectively removing germs and bacteria from your hands.