| 1 |
Carbon monoxide is harmful to us because. |
- A. It paralyses the lungs.
- B. It damages lungs tissues.
- C. It reduces oxygen carrying ability of haemoglobin
- D. It makes the blood coagulate.
|
| 2 |
About 99% atmosphere's lies within: |
- A. 30 kilometre
- B. 35 kilometre
- C. 15kilometre
- D. 11 kilometre
|
| 3 |
How much amount of sunlight reaches up to earth and absorbed: |
- A. 26%
- B. 32%
- C. 50%
- D. 18%
|
| 4 |
The major constituents of troposphere are: |
- A. carbon dioxide and argon
- B. nitrogen and oxygen
- C. argon and oxygen
- D. carbon dioxide and oxygen
|
| 5 |
Infrared radiations emitted by the Earth are absorbed by. |
- A. CO<sub>2</sub> and H<sub>2</sub>O
- B. N<sub>2</sub> and O<sub>2</sub>
- C. CO<sub>2</sub>and N<sub>2</sub>
- D. O<sub>2</sub>and CO<sub>2</sub>
|
| 6 |
Atmosphere is divided into; |
- A. 3 regions
- B. 4 regions
- C. 5 regions
- D. 6 regions
|
| 7 |
Which factor determines the severity of a pollutant? |
- A. Chemical nature
- B. concentration
- C. Persistence
- D. All of them
|
| 8 |
Ozone depletion was first noticed is. |
- A. 1970's
- B. 1980's
- C. 1990's
- D. 1960's
|
| 9 |
Incinerator reduces solid waste into . |
- A. Ash
- B. Flue gas
- C. Heat
- D. All of them
|
| 10 |
A strange bitter smell noticed near photo copier machine is of. |
- A. H<sub>2</sub>S
- B. SO<sub>2</sub>
- C. O<sub>2</sub>
- D. O<sub>3</sub>
|
