Question

You attend a football game one day and notice a long time difference between when the other side of the stadium stands up to cheer and when you hear them. This time difference would be lessened if
Responses
A it were warmer.it were warmer.
B it were less humid.it were less humid.
C it were located at a higher altitude.it were located at a higher altitude.
D the fans on the opposite side shouted louder.

Answer 1

A. Warmer.

Reason: sound travels faster in warmer air (c ≈ 331 + 0.6T m/s with T in °C), so the delay between seeing and hearing is reduced. Humidity actually slightly increases sound speed (so less humid would not help), altitude doesn't change speed significantly except via temperature, and loudness doesn't affect travel speed.