Sound can travel through

Options

A. gases only
B. solids only
C. liquids only
D. solids, liquids and gases.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Mediums of Sound Travel**: Sound is a mechanical wave that requires a medium to travel. The three primary states of matter that can act as mediums are solids, liquids, and gases.

2. **Sound in Solids**: Sound travels well through solids. For example, when you hit a piece of iron with a hammer, the vibrations created travel through the iron, and you can hear the sound. This shows that sound can effectively travel through solid materials.

3. **Sound in Liquids**: Sound also travels through liquids. An example of this is when you drop a bell into water. If you press the bell while it is submerged, the sound will travel through the water, and you will hear it above the surface. This demonstrates that liquids can transmit sound.

4. **Sound in Gases**: Sound can travel through gases as well. A common example is speaking in a closed room filled with air. The sound waves produced by your voice travel through the air, allowing you to hear them. This indicates that gases are also capable of transmitting sound.

5. **Conclusion**: Since sound can travel through solids, liquids, and gases, the correct answer to the question "Sound can travel through?" is option 4: solids, liquids, and gases.

**Final Answer**: Sound can travel through solids, liquids, and gases.

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