Question

Fine hair and mucus present inside the nose to prevent ____from getting in to

the respiratory system.

a. Oxygen

b. Dust

c. water

d. Hydrogen​

Answer 1

Answer:

B. Dust

Explanation:

To prevent dust particles from getting into the respiratory system, fine hair and mucus are present inside the nose. Since our mouth does not contain the above-discussed barriers of dust, so if we breathe through it, dust particles may enter in our respiratory tract.

Answer 2

Answer:

Fine hair and mucus present inside the nose to prevent dust from getting into the respiratory system.