Your ears "pop" when you ascend to higher altitudes because
A)air pressure is greater at higher altitudes.
B)air temperature is lower at higher altitudes.
C)air pressure is lower at higher altitudes.
D)air is dryer at higher altitudes.

Question

Quizplus · Accepted Answer

As one ascends to higher altitudes, the air pressure decreases. This decrease in pressure affects the air pressure in the inner ear, causing the eardrum to bulge outward, making the ears feel "full" or "blocked." When a person yawns, chews gum or swallows, the Eustachian tubes in the ear open, allowing air to flow from the middle ear to the back of the throat, equalizing the pressure on both sides of the eardrum, and causing the ears to "pop."

Your Ears "Pop" When You Ascend to Higher Altitudes Because