valeriecortez2000 valeriecortez2000

13-03-2021
Biology

contestada

Why does a mask have to cover both your nose and mouth to be effective explain using the Respiratory tract

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Sshreve Sshreve

13-03-2021

Your nose and your mouth are both a portal of entry into your body. If you cover one and not the other it defeats the purpose because Bacteria can still enter the system. They are both part of your respiratory system.

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