Advertisements
Advertisements
प्रश्न
The material generally used for sound proofing of rooms like a recording studio and auditorium is ______.
पर्याय
cotton
coir
wood
styrofoam
उत्तर
The material generally used for sound proofing of rooms like a recording studio and auditorium is styrofoam.
APPEARS IN
संबंधित प्रश्न
Give the effects of air pollutants on human health
Mention two advantages for preferring CNG over diesel as an automobile fuel.
Discuss briefly about Catalytic converter
It is an undesirable change that occurs in air and water
In which year was the Air (Prevention and Control of Pollution) Act amended to include noise as air pollution.
Is it true that carpets and curtains/drapes placed on the floor or wall surfaces can reduce noise level. Explain briefly?
It is a common practice to plant trees and shrubs near the boundary walls of buildings. What purpose do they serve?
Which device is used to clean both dust and gases from polluted air?
Brick kilns give out both gaseous and particulate pollutants.
Match the following and choose the correct option.
| Column I | Column II |
| A. Environment Protection Act | i. 1974 |
| B. Air Prevention & Control of Pollution Act | ii. 1987 |
| C. Water Act | iii. 1986 |
| D. Amendment of Air Act to include noise as an air pollutant | iv. 1981 |
