Question

Which of the following measures can be taken to control noise pollution in our surroundings?
A.By using silencers in vehicles
B.Planting trees
C.Using noise mufflers
D.All

Answer 1

Pollution is the presence of unwanted substances in our environment which directly or indirectly are harmful for all living beings. Noise pollution is the unwanted sound which can have adverse effects on human health.

Complete step by step answer:
Noise pollution is the continued exposure to the sound level louder than decibels which can lead to adverse effects on not only humans but also other living beings. The sound level less than decibels does not cause damage to any living being despite the constant and long exposure of such sound.First of all awareness of noise pollution is necessary to make people aware of the problems caused by it. We can take following measures to reduce or control noise pollution in our surroundings-
-Use of soft horns and silencers in automobiles can help reduce the noise pollution.
Planting trees alongside roads and building an near your houses can also help reduce the noise pollution as trees will act as a barrier for sound,
-Use of noise mufflers can protect your ears from noise. The factories workers who work in noise producing environments are recommended to use it so that their hearing capacity is not affected.
-Furthermore the machines used in the factories should be designed such that they produce less noise and they should be located away from populated areas like cities.
We should not play televisions, radio or our mobile phones at a high sound level as it can severely damage our hearing after a prolonged exposure to such sound.
Hence all the options are correct.

The correct answer is option D.

Note:
Noise pollution can have a very adverse effect on our health especially in children and people in old age. The effects of noise pollution are as follows-
-It can cause high blood pressure, headaches, damage to both ears causing deafness and even heart attacks.
-It can have a psychological effect as well as people with exposure to continued loud noise are known to have suffered from depression, anxiety, hysteria and fatigue.
-It can also be the cause of aggressive behavior and irritability in people.
-It affects the memory retaining power and concentration of humans.