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1. In which of the following will sound travel the fastest? a a. Over a cool area c. At room temperature b. Over a warm area d. Cannot be determined​

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Answer:

B. Over a warm area

Explanation:

When it comes to air, humidity and temperature both play a role in the speed of sound. ... Heat makes air molecules move around faster, so they're more ready to carry a pressure wave than slower-moving molecules. Because of that, heat makes sound travel faster, too.

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