| 1. |
Earth Day is celebrated on _____________________.
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Answer:
Option (c) |
| 2. |
Which gas is mainly produced due to incomplete burning of wood?
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Answer:
Option (a) |
| 3. |
Which of the following is involved in production of carboxy haemoglobin
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Answer:
Option (a) |
| 4. |
Which of the following is a liquid form of aerosol?
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Answer:
Option (c) |
| 5. |
X ray films are a source of which of the following gas?
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Answer:
Option (c) |
| 6. |
The maximum size of fly ash is ___________
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Answer:
Option (c) |
| 7. |
Which of the following is a secondary air pollutant?
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Answer:
Option (b) |
| 8. |
The permissible concentration of PM 10 in the air is ___________
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Answer:
Option (a) |
| 9. |
Which of the following is used in ceramic industries?
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Answer:
Option (b) |
| 10. |
Wet scrubbers are classified into ____ types.
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Answer:
Option (b) |