why fine hairs and mucus are present in nasal passage
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Answer:
To throw away the unwanted particles which enter the nasal cavity. This is the reason why we have a feeling of irritation and we sneez.
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Answer:nose hair help to cath particles, they are first line of defense in nasal passage. the hair and mucous along the nasal cavity are responsible for trapping dust and other particle and sweeping it out again and also protect from virus and bacteria etc
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