HEREDITY
THE PEDIGREE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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about 15 minutes
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about 15 days
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about 15 seconds
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about 15 hours
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Detailed explanation-1: -Scientific studies show that you need to scrub for 20 seconds to remove harmful germs and chemicals from your hands. If you wash for a shorter time, you will not remove as many germs. Make sure to scrub all areas of your hands, including your palms, backs of your hands, between your fingers, and under your fingernails.
Detailed explanation-2: -Wash hands with soap and water for at least 20 seconds. Use the cleanest water possible, for example from an improved source. *If soap and water are not available use an alcohol-based hand rub that contains at least 60% alcohol.
Detailed explanation-3: -Microbes are present on all surfaces of the hand, often in particularly high concentration under the nails, so the entire hand should be scrubbed 11-15. Scrub your hands for at least 20 seconds. Need a timer? Hum the “Happy Birthday” song from beginning to end twice.
Detailed explanation-4: -The Centers for Disease Control and Prevention (CDC) guidelines are to scrub your hands for at least 20 seconds. If you have trouble keeping track, try humming the entire “Happy Birthday” song twice before rinsing. Rushing the process can result in cross contamination and increased sickness.