How does a mechanical wave affect the matter in which it travels through? A
It changes its position forever
B
It moves perpendicular to the direction of the wave.
C
It has not affect on it
D
It may displace it temporarily, however when the wave passes the matter returns back
to its original position.

The best and most correct answer among the choices provided by your question is the fourth choice or letter D "The thin membrane that closes the cavity of the middle ear from the outside changes position."

Your ears pop in airplanes because the air high above the surface of Earth is less dense than air near the surface, because air near the surface has all the air above it pushing down. Your inner ear has air trapped in it and as the atmospheric pressure changes, it causes pressure on your eardrum.

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Explanation:

answer; ///i believe that the correct answer is (a) specialized cells)

where is the scientific experiment?