What happens to air as it passes through the respiratory system?

a.
air is trapped, cooled, and moistened.

b.
air is trapped, filtered, and dried.

c.
air is cooled, filtered, and dried.

d.
air is filtered, warmed, and moistened.

Depends on which disease, but as a general rule eat healthy. many vegetables.                                                        hope my answer has come to your . you for posting your question here in we hope to answer more of your questions and inquiries soon. have a nice day ahead! : )     (p.s mark as brainliest if )

The person who utilize the progression principle will keep adding the difficulty of the exercise that he's doing, while the person who does not, will only stay stagnant.  the person that utilize progression principle, will get a stronger endurance because now his body is conditioned to do harsher routines.{the answer was already on verified)