We have learnt that vibration is necessary for producing sound. Explain why the sound produced by every vibrating body cannot be heard by us

We have learnt that vibration is necessary for producing sound. Explain why the sound produced by every vibrating body cannot be heard by us.

Answer:

If the sound produced by a vibrating body is in the audible range, the sound produced will be heard by us otherwise we will not be able to hear the sound even though the body is vibrating.