Answer:
1.D.20 seconds
HOW MANY SECONDS DO YOU NEED TO WASH YOUR HANDS?
Explanation: washing your hands can take 20 seconds .lather your hands by rubbing them together with soap. then,lather the back of you hand,between your fingers and under your nails
2.D.to maintain proper hygiene
WHAT IS THE MAIN PURPOSE OF HANDWASHING?
Explanation:the main purpose of handwashing is to maintain a proper personal hygiene to protect ourselves againts infectious disease covid 19 virus. the way we do proper personal hygiene in yourself protects you in helpful ways which maintain a heathy body and protective immune system againts viruses and bacteria through proper hand washing hygiene.
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