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Answered

Which best describes longitudinal waves?

ACompressions and rarefactions make up longitudinal waves, which can only travel in matter.
BLight energy travels in longitudinal waves and can travel in either matter or empty space.
CLongitudinal waves carry sound energy and are made up of crests and troughs.

Verified Answer :

A.Compressions and rarefactions

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Out of the choices given, the best statement that describes a longitudinal wave is "compressions and rarefactions make up longitudinal waves, which can only travel in matter. " The correct answer is A.