Sound can only be produced by vibrating bodies

Answer

**Step-by-Step Solution:**

1. **Understanding Sound Production**: Sound is produced when an object vibrates. This vibration creates waves in the surrounding medium (like air, water, or solids).

2. **Vibration of Molecules**: When a vibrating body produces sound, it causes the molecules of the medium around it to vibrate as well. These molecules transfer the vibrational energy from one to another, allowing sound to travel.

3. **Role of the Source**: For sound to be produced, there must be a source that vibrates. If the source does not vibrate, the surrounding medium cannot vibrate either.

4. **Conclusion**: Since sound cannot travel without the vibration of both the source and the medium, the statement "Sound can only be produced by vibrating bodies" is true. A non-vibrating body cannot produce sound.

**Final Answer**: True, sound can only be produced by vibrating bodies.

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