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Which of the following is NOT a feature of sound? * (1 Point) Sound is a form of physical energy. Sound is a type

 

Which of the following is NOT a feature of sound? * (1 Point) Sound is a form of physical energy. Sound is a type of electrical energy. Sources of sound cause the air molecules next to them to vibrate with certain frequencies. The propagation of sound waves is analogous to waves spreading on a calm pond if you throw a pebble into it.

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