Sound waves are a sequence of ___ and rarefactions.

troughs

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valleys

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compressions

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crests

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Solution

The correct option is C compressions
Sound waves are a sequence of compressions and rarefactions. A compression is a region in a longitudinal wave where the particles are closer than normal. A rarefaction is a region in a longitudinal wave where the particles are farther than normal.

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Similar questions

A sound wave is a sequence of __ and rarefactions.

Sound waves are a sequence of compressions and rarefactions.

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