Noise Pollution

Q. What is noise pollution?

Q.

Explain the sources which produce sound pollution in your surroundings.

Q. Above _____ $dB$ the sound becomes physically painful

1. $40$
2. $120$
3. $60$
4. $80$

Q.

What are the harms of noise pollution?

Q.

How can the noise pollution be controlled in a residential area? [5 MARKS]

Q.

Question 10
Explain in what way noise pollution is harmful to humans.

Q.

Meaning Of Line Heard Melodies Are Sweeter, But Those Unheard Are Sweeter

Q.

What steps should be taken to reduce the effect of noise pollution?

Q. (1) 18 dBdro 403. A listener x hers a sound level of 50 dB when he is at a distance 1 km from the nstrument. Anothery at a distance 10 km from the listener x hears a sound level of(1) 30 dEB(2) 20 dBA 5 dR

Q.

Your parents want to join you in a school. One school is near the air port and along the road having heavy traffic. Another school is much away both from air port and trafic, in a serene place with more trees around.If parents gives you choice of joining in either of the school, which school would you join and why?

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

Q. Choose the statement(s) which is/are incorrect about noise pollution.

1. Loud noise can cause irritation and headache.
2. Loud noise can give energy to all young persons, including teenagers.
3. Loud noise can damage ears permanently and cause deafness.
4. Loud noise can cause hypertension or high blood pressure.

Q. Which of the following measure would not help in controlling noise pollution in the residential areas?

1. Setting up industries away from residential areas
2. Maintenance of old vehicles and machines
3. Restriction on unnecessary honking
4. Cutting down trees

Q.

Your parents want to join you in a school. One school is near the airport and along the road having heavy traffic. Another school is much away both from airport and traffic, in a serene place with more trees around.If parents gives you the choice of joining in either of the school, which school would you join and why? [3 MARKS]

Q.

In what ways would you prevent the noise pollution.

Q. Which of the following is not an effect of noise pollution?

1. Lack of sleep
2. Enhanced concentration
3. Hearing impairment
4. Hypertension

Q. The sound intensity level at a point 4 m from thepoint source is 10 dB, then the sound level at adistance 2 m from the same source will be(1) 26 dB(3) 23 dB(2) 16 dB(4) 32 dB

Q. What are sources of noise pollution?

Q. What is noise? What is noise pollution? What measures should we take to reduce noise pollution?

Q. Define noise and noise pollution.

Q. What are the hazards of noise pollution? How noise pollution can be minimized?

Q. The level of normal conversation in db

Q. Identify the figure of speech in the following sentence:
The music of her laughter made us smile.

1. Simile
2. Metaphor
3. Synecdoche
4. Apostrophe

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

1. Crackers
2. Silencers
3. Heavy machines
4. Loud speakers

Q. Describe certain sources of environmental and indoor noise pollution.

Q.

What is noise pollution ?

Q. In a normal conversation, the loudness of sound is________.

1. 55 dB
2. 60 dB
3. 65 dB
4. 70 dB

Q. Sounds above the ______ decibel is considered to be harmful to us.

1. 20
2. 60
3. 80
4. 100

Q. 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 your answer.​ [2 marks]

Q. Which of the following are the major harmful effects caused due to noise pollution?

1. Malaria
2. Insomnia
3. Hearing loss
4. Hypertension