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ankoles [38]
3 years ago
15

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

Biology
1 answer:
dusya [7]3 years ago
3 0

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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s2008m [1.1K]

The options attached to the above question are given below:

A) The boys at first were very polite about my medals and asked me what I had done to get them.

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