What happens to air as it passes through the respiratory system? air is cooled, filtered, and dried. air is trapped, cooled, and moistened. air is filtered, warmed, and moistened. air is trapped, filtered, and dried.

Nope it’s the third one it’s trapped by ur mouth, filtered by parts ur respiring system like alveoli, and moistened by salivary glands and mucus in your throat .

like body hair ? if its that its beacuse it keeps you warm from the cold or if u mean hair from your head for you to look good

explanation:

answer; philip zimbardo;