HEYA❤❤define compression and rarefraction
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A compression is a region in a longitudinal wave where the particles are closest together.
Rarefaction. A rarefaction is a region in a longitudinal wave where the particles are furthest apart.
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Half of a sound wave is made up of the compression of the medium, and the other half is the decompression or rarefaction of the medium. Rarefaction is the reduction of an item's density, the opposite of compression. Like compression, which can travel in waves ( sound waves, for instance), rarefaction waves also exist in nature.
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