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Earlier discussion
2 older comments kept for context.
Oluwaseun Adeyemi
Sound waves are traveling vibrations of particles in media such as air, water or metal. Sound requires a material medium for its propagation, and as a result, cannot travel through a vacuum. Sound is a longitudinal wave and can be reflected and refracted like light. Sound moves faster in a steel wire than in air and can only be produced by vibrating objects
Temilade Adeleye
The answer chosen is wrong. Sound waves require material medium for its propagation.... Sound waves do not travel through vacuum as it is not an electromagnetic wave.