Question

Why do our ears pop as we go higher up on mountains? ​

Answer 1

This is because the air pressure declines as you go up. If there is a blockage in the Eustachian tubes which connect both sides of the ear drum, then the change in external pressure will cause the ears to “pop” as the pressure is equalized by air being forced past the blockage.You can try to avoid this by swallowing ir sucking a candy.