Answer:
A. 20 °C
Explanation:
At freezing (0º C), sound travels through air at 331 meters per second. But, at 20ºC, room temperature, sound travels at 343 meters per second so it is indeed at 20°C sound travel faster.
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Answers & Comments
Answer:
A. 20 °C
Explanation:
At freezing (0º C), sound travels through air at 331 meters per second. But, at 20ºC, room temperature, sound travels at 343 meters per second so it is indeed at 20°C sound travel faster.