Answer:
because the air temperature is different which greatly affects the speed and strength of sound
answer
During the night sounds are refracted downwards to the ground. As a result the sound travels faster and more clearer, making it easy to hear the siren.
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Answers & Comments
Answer:
because the air temperature is different which greatly affects the speed and strength of sound
answer
During the night sounds are refracted downwards to the ground. As a result the sound travels faster and more clearer, making it easy to hear the siren.