A) wave
B) resonance
C) Doppler effect
D) frequency
Answer: A
Explanation: A vibration in some media that transfers energy from one place to another. Sound waves are vibrations passing in air.
A) wave
B) resonance
C) Doppler effect
D) frequency
Answer: A
Explanation: A vibration in some media that transfers energy from one place to another. Sound waves are vibrations passing in air.
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