Question

Mucus production in nose is advantageous because it ____.

• A. prevents loss of water.
• B. helps lungs to function.
• C. provides defense against microorganisms.
• D. protects from powerful acids like HCl.

Answer 1

The correct option is C

provides defense against microorganisms.

Mucus production in the nose is an advantage because of its sticky and liquid nature. It prevents or blocks the entry of foreign particles like dust, pollen, microbes etc into lungs. It is the mucus in inner lining of the stomach that protects us from the action of the acids.