22. Sound waves can't travel through
A. a solid.
B. a vacuum.
C. an elastic material.
D. a liquid.
Sound waves cannot travel through a vacuum.
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Asked 9/19/2012 4:06:26 PM
Updated 1/20/2018 8:18:58 PM
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yumdrea [1/20/2018 8:18:56 PM]
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