The radio is playing at the front of the room. How does the sound get from the speakers to your ears? A: A breeze blows from the speakers and pushes the sound along. B: Vibrations are sent through the air to your ears. C: The sound bounces off a satellite and back to Earth. D: The speakers produce invisible laser beams that carry sound.

Vibrations are sent through the air to your ears.

Explanation:

Sound is a form of energy that is transmitted in compression and rare factions. Sound is a mechanical wave. All mechanical waves require a material medium for propagation.

The material medium for the propagation of sound is air. When the sound is produced by the speakers, the molecules of air are set into vibration and this vibration carries the sound from the speaker to your ears.

the device is called “ rocket engine”