Which of the following is true about sound waves?

Sound moves faster in the ocean than in the air.

Sound would move faster in a pool of rubber than in a pool of diamonds.

Sound would move faster in a pool of water than in a pool of Jello.

Sound moves faster in a lake than in the ocean.

None of the above statements are universally true about sound waves. The speed of sound depends on the medium through which it is traveling. For example, in general, sound travels faster in solids than in liquids, and faster in liquids than in gases. The speed of sound also depends on temperature and pressure. Therefore, the answer is none of the above.