Question

answer these questions​

Answer 1

Explanation:

In physics, sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid. In human physiology and psychology, sound is the reception of such waves and their perception by the brain.

Originally Answered: What are the necessary conditions for sound to be produced? 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).