When an object vibrates triggered by a certain sound, this creates a pressure wave.
GUIDE QUESTIONS:
When the dog barks, the man's ear detects sound waves from the vibrating air particles. These vibrating air particles will travel through the ear of the man.
The air
Sound waves is triggered when a certain thing or person created a sound. For example, speaking, hitting the drum using the stick, etc.
Sound waves transfer energy through vibration of air particles.
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Answer:
What causes wave?
GUIDE QUESTIONS:
Hope this helps. Good luck!