| 1 |
In the troposphere (lowest layer), the temperature decreases form 17°C to; |
- A. -58°C
- B. -93°C
- C. -61°C
- D. -49°C
|
| 2 |
The formula of ozone is. |
- A. O<sub>2</sub>
- B. O<sub>3</sub>
- C. O
- D. CO
|
| 3 |
Depending upon temperature variation, atmosphere ins divided into how many regions? |
|
| 4 |
Which of the following can be used as a fuel? |
- A. Methanol
- B. Ethanol
- C. Bio-diesel
- D. All of them
|
| 5 |
The pH of water containing CO<sub>2</sub> is |
- A. 4-6
- B. 5.6-6
- C. 6-7
- D. 7-8
|
| 6 |
Which one of these pollutants are not found in car exhaust fumes? |
- A. CO<sub>2</sub>
- B. O<sub>3</sub>
- C. NO<sub>2</sub>
- D. SO<sub>2</sub>
|
| 7 |
Effects of ozone depletion are following except the one. |
- A. Increases infectious diseases
- B. Increases crops production
- C. Can cause skin cancer
- D. Can cause climatic changes.
|
| 8 |
The layer above troposphere extend upto 50 kilometers called. |
- A. Mesosphere
- B. Hydrosphere
- C. Stratosphere
- D. Thermosphere
|
| 9 |
Which gas acts as a glass wall of a green house? |
- A. Oxygen
- B. Carbon dioxides
- C. sulphur dioxide
- D. Hydrogen
|
| 10 |
Which one of the following gas has greater retaining capacity? |
- A. O<sub>2</sub>
- B. N<sub>2</sub>
- C. CO
- D. CO<sub>2</sub>
|
