Question

Air is warmed and humidified in the nasal passages. This helps to ________.

ward off infection
decrease sensitivity during breathing
prevent damage to the lungs
all of the above

Answer 1

The correct answer is c. prevent damage to the lungs

Step-by-step explanation:

There are several ways in which our lungs can be damaged. The most common one is smoking, pollution, and lack of exercise. However, we have a body which helps us to avoid that our lungs can be more damaged and this body allows the nasal passages to have warmed and humidified air to prevent damage to the lungs.