Question

Paheli while moving in a forest observed that there was no noise pollution, though lots of heavy vehicles were passing from the nearby highway. Explain why?

Answer 1

Noise pollution:

1. Noise Pollution is caused by regular exposure to elevated sound levels.
2. It leads to adverse effects on humans and other living organisms.

Paheli was not observing noise pollution while moving in a forest as vehicles are passing through nearby highways because:

1. By dampening sound, a phenomenon known as sound attenuation, trees serve as noise barriers and reduce pollution.
2. Noise attenuation often occurs when sound waves dissipate over greater distances until no energy is left to cause air vibrations.
3. Through absorption, deflection, refraction, and masking, trees reduce noise.
4. Because trees operate as a noise barrier, forest trees aid in the reduction of noise pollution. Paheli would therefore be unable to hear the noise pollution in the forest.