Answer:-(B) Sound needs a material medium for their propagation like solid, liquid or gas to travel because the molecules of solid, liquid and gases carry sound waves from one point to another.
So it is the false statement.

False

Explanation:
Sound is a form of energy that is produced by vibrations. These vibrations create compressions and rarefactions in a medium, which then travel as sound waves. Therefore, sound does require a medium for propagation.

Propagation of Sound Waves:
Sound waves propagate through a medium in the form of compressional waves, also known as longitudinal waves. The medium can be a solid, liquid, or gas, as long as it has particles that can vibrate.

Vibrations and Creation of Sound Waves:
When an object vibrates, it causes the surrounding particles in the medium to also vibrate. These vibrations create compressions (regions of high pressure) and rarefactions (regions of low pressure) in the medium. As the object continues to vibrate, these compressions and rarefactions travel away from the source of the sound, forming sound waves.

Interaction of Sound Waves with Medium:
As sound waves travel through a medium, they transfer energy to the particles of the medium. The particles then pass on this energy to neighboring particles, resulting in the propagation of sound. The speed of sound depends on the properties of the medium through which it is traveling.

Examples of Sound Propagation:
- In air, sound waves travel by causing the air particles to vibrate.
- In water, sound waves travel by causing the water molecules to vibrate.
- In solids, sound waves can travel through the vibrating particles of the solid.

Conclusion:
In conclusion, sound does require a medium for propagation. Without a medium, such as air, water, or a solid substance, sound waves cannot travel and be heard by our ears.