Explanation:At night , the air is denser due to humidity (obviously nights are cooler). sound requires medium to travel and so DENSER the medium,FASTER the sound travels. Humid air is denser than warmer air as in day.
At night, the air is denser due to humidity. Nights are cooler. Sound requires medium to travel and, so the denser the medium, the faster the sound travels. Humid air is denser than warmer air in the day.
