Question

sound travels in the form of mechanical waves, because of this sound waves travel fastest through what medium? solids vacuum (empty space) liquids gases

Explanation:

Sound is a mechanical wave, requiring a medium (particles) to travel. In solids, particles are closely packed, allowing faster vibration transfer than in liquids/gases. Vacuum has no particles, so sound can’t travel there. Thus, sound travels fastest in solids.

Answer:

A. Solids