Question

question 21
sound waves are simply ________.
○ a form of electronic radiation
○ the impact of acoustrons in the air
○ the vibration of the molecules of the air surrounding us
○ little packets, just like the way light comes in photons

Explanation:

Sound waves are mechanical waves that result from the vibration of air - molecules. Electronic radiation refers to electromagnetic radiation like light, not sound. There is no such thing as 'acoustrons' in the context of sound - wave formation. Sound is not made up of packets like photons.

Answer:

the vibration of the molecules of the air surrounding us