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What is the primary source of a sound?
A refraction
A medium to carry the signal
A vibration
A frequency

Respuesta :

shreshah879

Answer:

A vibration is the primary source of a sound.

mkim6926

Answer:

vibration

Explanation:

A sound is the result of a body vibrating in a medium that transmits the energy given off by the body. When a musician draws a bow across the strings of a violin, the strings vibrate and make a sound.

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