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allochka39001 [22]
3 years ago
5

Select the correct answer.

Biology
1 answer:
AnnyKZ [126]3 years ago
3 0

Answer:

A. They require a medium to travel through

Explanation:

The medium can be any substance-solid,liquid,or gas- and the wave's speed depends on the properties of the material of the medium the wave travels through.

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