Noise Pollution and Measures to Control It

Q.

(a) What is meant by noise pollution? Mention some of the sources of noise pollution in your surroundings.

(b) Explain how noise pollution (or excessive loud noise) is harmful to human beings.

(c) State the various measures which can be taken to control (or reduce) noise pollution in our surroundings.

(d) What can be done along the roads to reduce noise pollution caused by traffic from reaching the residents of the area?

Q.

Question 11
Your parents are going to buy a house. They have been offered one on the roadside and another three lanes away from the roadside. Which house would you suggest your parents should buy? Explain.

Q.

Your parents are going to buy a house. They have been offered one house on the roadside and another house three lanes away from the roadside. Which house would you suggest your parents should buy? Explain your answer.

Q. Question 20
List three sources of noise pollution in your locality.

Q. How can we hear the sound of the sun when there is no medium in the space?

Q. Any sound which has adverse effects on our health is known as ___.

1. Noise pollution
2. Air pollution
3. Water pollution
4. Environmental pollution

Q.

Give any four sources of sound in a market place.

Q. Sound which is unpleasant to ears and causes discomfort is called noise.

1. False
2. True

Q. Which of the following are sources of noise pollution?

1. Airplanes

2. Heavy machines

3. Silencers

4. Loudspeakers

Q. Which of the following can be a cause for hearing loss?

1. Hypertension
2. Sleeplessness
3. High cholestrol food
4. Heredity

Q.

(a) What type of pollution is caused by the working of mixer and grinder in the kitchen?

(b) Why should we not put a pin or pencil in our ears?

Q.

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?

Q.

(a) Give two causes of noise pollution from the homes.

(b) What are the usual causes of the partial hearing loss suffered by a person?

Q.

Very loud music can be considered as noise.

1. True

2. False

Q. How can the noise pollution be controlled in a residential area?

Q. In the following sentence. say 'True' and 'False'
$\left(a\right)$ Sound can't travel in vacuum (T/F)
$\left(b\right)$ The number of oscillations per second of a vibrating object is called its time period. (T/F)
$\left(c\right)$ If the amplitude of vibration is large, sound is feeble. (T/F)
$\left(d\right)$ For human ears, the audible range is 20Hz to 20, 000Hz. (T/F)
$\left(e\right)$ The lower the frequency of vibration, the higher is the pitch.
$\left(f\right)$ Unwanted or unpleasant sound is termed as music. (T/F)
$\left(g\right)$ Noise pollution may cause partial hearing impairment. (T/F)

1. $TFTTFFT$
2. $TTFTFFT$
3. $TFFTFFT$
4. $TFFTFFF$

Q.

Differentiate between musical sound and noise.

Q. Which of the following are true for noise pollution?
a) Noise pollution is unpleasant and discomforting.
b) Noise pollution can cause health problems.
c) Long term exposure to loud noises can cause temporary or ever permanent hearing impairment.

1. a and d
2. b and c
3. a, b and d
4. All of the above

Q.

Excess noise in the environment is useful for human beings.

1. True
2. False

Q. Which of the following causes noise pollution?

1. Loud Speakers
2. Radio at low volume
3. None of these
4. Low music

Q. Which of the following measure can be taken to control noise pollution in our surroundings?

1. By using silencers in vehicles
2. Planting trees
3. Using noise mufflers
4. All

Q.

The green muffler is used against which of the following types of pollution?

1. Air

2. Soil

3. Noise

4. Water

Q. Noise pollution can cause:

1. hearing impairment
2. hypertension
3. insmonia
4. all of the above

Q. State whether given statement is True or False
Noise pollution can cause partial hearing impairment.

1. True
2. False

Q. Trees must be removed from the road sides and around buildings to reduce the harmful effects of noise pollution.

1. Ambiguous
2. Data insufficient
3. False
4. True

Q. Extremely loud sound can make one deaf. Suggest some measures to check loud noise.

Q. Question 9
List sources of noise pollution in your surroundings.

Q. Suggest some measures to reduce noise pollution in your residential area.

Q. Continuous exposure to loud sound may cause hearing impairment.

1. True
2. False

Q. Loudness of sound is measured in:

1. $angstorm$
2. $erg$
3. $newton$
4. $decibel\left(dB\right)$