WBBSE Class 6 Geography Chapter 9 Noise Pollution MCQs

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WBBSE Chapter 9 Noise Pollution Multiple Choice Questions

Question 1. Sound is generated by—

  1. A vibrating object
  2. A static object
  3. A buoyant object

Answer: 1. A vibrating object

Question 2. The unit that measures the intensity of sound is—

  1. Milibar
  2. Decibel
  3. Cusec

Answer: 2. Decibel

Question 3. Noise pollution in urban areas is—

  1. Higher than rural areas
  2. Lower than rural areas
  3. The same as in rural areas

Answer: 1. Higher than rural areas

Read and Learn More WBBSE Class 6 Geography Multiple Choice Questions

Question 4. The main source of noise pollution in urban areas is—

  1. Musical programs
  2. Thunder
  3. Horns of vehicles

Answer: 3. Horns of vehicles

Question 5. The intensity of the sound of a siren is near—

  1. 100 Decibel
  2. 130 Decibel
  3. 150 Decibel

Answer: 2. 130 Decibel

WBBSE Class 6 Geography Chapter 9 Noise Pollution MCQs

Question 6. The range of the intensity of sound between whispering and general conversation is from—

  1. 40-70 Decibel
  2. 0-40 Decibel
  3. 20-65 Decibel

Answer: 3. 20-65 Decibel

Question 7. The sound made by a jet plane at a distance of 300m is almost—

  1. 100 Decibel
  2. 110 Decibel
  3. 140 Decibel

Answer: 1. 100 Decibel

Question 8. The permissible limit of sound decided by the government is—

  1. 65 Decibel
  2. 70 Decibel
  3. 100 Decibel

Answer: 1. 65 Decibel

Question 9. The sound of normal conversation has an intensity of—

  1. 10-20 Decibel
  2. 35-60 Decibel
  3. 100-200 Decibel

Answer: 2. 35-60 Decibel

Question 10. High-pitched sounds—

  1. Make us happy
  2. Irritate us
  3. Do not have any impact on us

Answer: 2. Irritate us

Question 11. The silence board that hangs near schools and hospitals asks us to—

  1. Maintain silence
  2. Make loud noise
  3. Maintain normal levels of sound

Answer: 1. Maintain silence

Question 12. The ‘silence zone’ around schools and hospitals covers an area of—

  1. 100 Metres
  2. 200 Metres
  3. 500 Metres

Answer: 1. 100 Metres

Question 13. A silencer is a device that—

  1. Generates sound
  2. Prevents sound
  3. Muffles sound

Answer: 2. Prevents sound

Question 14. The sound of television is controlled by —

  1. Volume button
  2. Speaker
  3. Mute button

Answer: 1. Volume button

Question 15. If the distance between the source of a sound and the listener increases, the intensity of the sound will—

  1. Decrease
  2. Increase
  3. Remain the same

Answer: 1. Decrease

Question 16. Noise pollution causes our sense of hearing to become—

  1. More acute
  2. Less acute
  3. Stay the same

Answer: 2. Less acute

Question 17. The difference between noise pollution and other kinds of pollution is that it—

  1. Lasts for a long time
  2. Is short-lived and localized
  3. Occurs over a large region

Answer: 2. Is short-lived and localized

Question 18. The capability to hear can reduce gradually as a result of—

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

Answer: 3. Noise pollution

Question 19. One makes mistakes in jobs and does not like to work because of—

  1. Exposure to prolonged, high volume and monotonous sounds
  2. Exposure to prolonged low-volume and monotonous sounds
  3. Exposure to prolonged musical sound

Answer: 1. Exposure to prolonged, high volume and monotonous sounds

Question 20. Which of the following is caused by noise pollution?

  1. Diarrhoea
  2. High blood pressure
  3. Bronchitis

Answer: 2. High blood pressure

Question 21. Which of the following should we use to protect ourselves from noise pollution?

  1. Earplugs and earmuffs
  2. Eardrums
  3. Hearing aids

Answer: 1. Earplugs and earmuffs

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