___ have mucus and cilia to trap dust particles present in the air and stops them from entering our body.

Nostrils

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Mouth

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Tongue

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Fingernails

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Solution

The correct option is A
Nostrils

Nose has two openings which are called nostrils. Nostrils have fine hair called cilia and mucus to trap dust particles present in the inhaled air and stops them from entering our respiratory system.

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Similar questions

__ have hair to trap dust particles present in the air and stops them from entering our body.

___ have hair to trap dust particles present in the air and stop them from entering our lungs.

The lining of the nasal chamber has mucus which prevents pollen and dust particles from entering into the lungs.

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