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The material generally used for sound p...

The material generally used for sound proofing of rooms like a recording studio and auditorium , etc is :

A

Cotton

B

Coir

C

Wood

D

Stryo foam

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The correct Answer is:
D
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OSWAAL PUBLICATION-ENVIRONMENTAL ISSUES -TOPIC - 2 ( MULTIPLE CHOICE QUESTIONS.)
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  2. According to the Central Pollution Control Board, particle that are...

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  3. The material generally used for sound proofing of rooms like a record...

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  4. Compressed Natural Gas (CNG) is :

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  5. World's most problematic aquatic weed is :

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  6. Which of the following causes biomagnification ?

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  7. The expanded form of DDT is :

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  8. Which of the following material takes the longest time of biodegrad...

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  9. Choose the incorrect statement.

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  10. Among the following which one causes more indoor chemical pollution...

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  11. The green scum seen in the fresh water bodies is :

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  12. The loudness of a sound that a person can withstand without discomfort...

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  13. The major source of noise pollution , world wide is due to :

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  14. Match correctly the following and choose the correct option: The...

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  15. Catalytic converters are fitted into automobiles to reduce emission of...

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  16. Why is it necessary to remove sulphur from petroleum products?

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  17. Which one of the following impurities is easiest to remove from waste ...

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  18. Which one of the following diseases is not due to contamination of wat...

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  19. Nuisance growth of aquatic plants and bloom forming algae in natural w...

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  20. Algal blooms impart a distinct colour to water due to:

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