Question

how do we hear sound​

Answer 1

Answer:

Your middle ear has three tiny bones in it, called ossicles. These three bones form a chain from the eardrum to the inner ear. The eardrum moves back and forth when sounds hit it. Different pitches, or how high or low a sound is, make the eardrum move more or less.

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Answer 2

Answer:

sound travels when particles vibrates

and when those vibration reaches to our ears

our ear drums vibrates and send the signal to our brain