Respuesta :

Emmanuella0

Explanation:

You need two, maybe three things - something that's vibrating, a medium for those vibrations to propagate in, and a listener to hear it or recording equipment to pick it up

rainestormee

Answer:

You must not be inside a vacuum.

Explanation:

If you are inside a vacuum, then sound will be unable to travel as it requires the vibration of other molecules in order to spread.

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