- 1(current)
Q. No.Q.3 The material generally used for soundproofing of rooms like a recording studio and auditorium etc., is
1. cotton
2. )coir
3. wood
4. styrofoam
Subtopic: Â Introduction to Pollution & Types |
 71%
Level 2: 60%+
Hints
Q.13 The major source of noise pollution, worldwide is due to
1. office equipment
2. transport system
3.sugar, textile, and paper industries
4. oil refineries and thermal power plants
Subtopic: Â Introduction to Pollution & Types |
 76%
Level 2: 60%+
Hints
Match correctly the following and choose the correct option :
| A. | Environment Protection Act | 1. | 1974 |
| B. | Air Prevention and Control of Pollution Act | 2. | 1987 |
| C. | Water Act | 3. | 1986 |
| D. | Amendment of Air Act to include noise | 4. | 1981 |
The correct matches are
| A | B | C | D | |
| 1. | 3 | 4 | 1 | 2 |
| 2. | 1 | 3 | 2 | 4 |
| 3. | 4 | 1 | 2 | 3 |
| 4. | 3 | 4 | 2 | 1 |
Subtopic: Â Introduction to Pollution & Types |Â Air Pollution |
 84%
Level 1: 80%+
Hints
- 1(current)
Q. No.
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