Which property allows sound waves to travel through liquids?

The ability of sound waves to travel through liquids is largely determined by the density of the particles in the medium. Sound waves are mechanical waves that require a medium (solid, liquid, or gas) to propagate. When sound travels through a liquid, it moves by causing the particles of that liquid to vibrate and transfer energy from one particle to another.

In fluids, sound waves can travel because the closely packed particles can efficiently transmit vibrational energy. The density of the liquid affects how quickly sound can travel; generally, sound travels faster in denser mediums because the particles are closer together, which allows the vibrations to pass more efficiently. For instance, sound travels faster in water than in air due to the higher density of water compared to air.

Other properties listed, such as viscosity, temperature, and color, while they might influence various characteristics of sound, do not fundamentally determine its ability to travel through a liquid. Viscosity (a measure of a fluid's resistance to flow) may affect how sound travels but is not a primary factor, while temperature can influence the speed of sound by affecting particle movement but does not change how sound waves can propagate through the medium itself. The color of the liquid has no relevance to sound propagation. Thus, the density