Hairs present in our nostrils prevent the entry of _______ into our respiratory system.

Carbon dioxide

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Dust particles

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Nitrogen

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Oxygen

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Solution

The correct option is B
Dust particles

Air contains dust particles which are harmful to us.

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Similar questions

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

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

How does oxygen changes into carbon dioxide inside our body

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