Noise Pollution MCQs Class 8
Noise Pollution – MCQs with Answers & Explanations
Class: 8 |
Subject: Science
Section: 13 – Sound
Topic: Noise Pollution
Board: CBSE Board Examination (Based on NCERT Syllabus)
Section: 13 – Sound
Topic: Noise Pollution
Board: CBSE Board Examination (Based on NCERT Syllabus)
1. Noise is defined as:
Answer: B — Unwanted sound
Noise is any unpleasant or disturbing sound that causes discomfort to living beings.
Noise is any unpleasant or disturbing sound that causes discomfort to living beings.
2. Noise pollution means:
Answer: B
When noise levels exceed safe limits, it leads to noise pollution affecting health.
When noise levels exceed safe limits, it leads to noise pollution affecting health.
3. Unit of noise level is:
Answer: B — Decibel (dB)
Decibel measures sound intensity and loudness.
Decibel measures sound intensity and loudness.
4. Prolonged exposure to loud noise may cause:
Answer: B
Continuous loud noise damages the ear drum and hearing ability.
Continuous loud noise damages the ear drum and hearing ability.
5. Major source of noise pollution:
Answer: A
Traffic noise is one of the biggest contributors in cities.
Traffic noise is one of the biggest contributors in cities.
6. Loudspeakers during festivals cause:
Answer: B
7. Noise pollution affects:
Answer: D
Noise impacts both physical and psychological health.
Noise impacts both physical and psychological health.
8. Acceptable noise level in residential areas is about:
Answer: B
Around 40–50 dB is comfortable for living.
Around 40–50 dB is comfortable for living.
9. Noise above safe limit causes:
Answer: D
10. Plantation reduces noise by:
Answer: A
11. Silencers are used in vehicles to:
Answer: B
12. Noise pollution is highest near:
Answer: B
13. Honking unnecessarily causes:
Answer: B
14. Best way to control noise:
Answer: B
15. Noise pollution mainly occurs in:
Answer: A
16. Continuous noise leads to:
Answer: B
17. Firecrackers cause:
Answer: B
18. Schools declare silence zones to:
Answer: B
19. Noise control device:
Answer: A
20. Planting trees helps in:
Answer: B
