Question

in: Airis filtered. The moist surface of the linin
g of the nasal
cavity, and the hairs growing from its sides, remove some
of the tiny particles of dirt in the air. In addition, as the
inhaled air passes through the nasal cavity, its temperatur
is brought close to that of the body, and it takes up wat
vapour so that it becomes more moist than before.
Warming and moistening goes on in this common passa
of digestive and respiratory system. Epiglottis, a flap |
of food and air towe​

Answer 1

Explanation:

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