contestada

As a wave moves through a medium, particles are displaced and

return to their normal position after the wave passes.

remain in the new location after the wave passes.

are combined with other particles forming the wave.

are moved along with the wave as it travels through the medium.

Respuesta :

Greenleafable
As a wave moves through a medium, particles are displaced and return to their normal position after the wave passes. 
Even though their positions are changed drastically after the wave in a medium, they eventually return to their original positions.
alyxxboothe

A) return to their normal position after the wave passes.

I don't really know why, but i got it right on my test, so here ya go. :)