we can hear the whistle of a distant train clearly early in morning in winter
Answers
Answer:
Explanation:
In winter, deciduous trees are bare. Leaves are great absorbers of sound. Sound barriers often incorporate trees or ivy. So, you have a sound mitigator out of the picture in winter. Sound is kinetic energy. You just removed a bunch of little energy absorbers in autumn.
Ground surface…in winter you often get a nice smooth layer of snow. Unlike a rough ground surface with grass, weeds, trees, rocks, scrub, etc. and sharp angles of things like curbs, signs, and the like, you have a graduated smooth surface that can reflect sound nicely. All those bumps and angles are rounded off. Of course when that snow is falling, those flakes are great sound absorbers and can muffle sound very effectively. A heavy snowfall makes things much quieter when that snow is coming down.
Wildlife….there is less ‘white’ noise from wildlife in winter. Birds, insects (think crickets/locusts/cicadas), dogs and so forth. So a particular sound is not competing with as much background noise.
People noise. In winter, people are more inclined to stay indoors. Fewer large groups at the park or on the sidewalk. Fewer barbeques and outdoor parties. Less likely to have windows open in cars or homes where their music and other noises leak out. Less competing background noise in the winter makes it easier for a specific sound to travel a greater distance and not get lost in the….ahem….noise.