| 1 |
The percentage of sun light absorbed by atmospheric gases is. |
- A. 2%
- B. 10%
- C. 18%
- D. 25%
|
| 2 |
Normaily rain water is weakly acidic because. |
- A. SO<sub>3</sub>
- B. CO<sub>2</sub>
- C. CO<sub>3</sub>
- D. NO<sub>2</sub>
|
| 3 |
How many percentage of sunlight is absorbed by atmosphere gases. |
- A. 12%
- B. 18%
- C. 24%
- D. 30%
|
| 4 |
Which is the major effect of global warming? |
- A. Increase in temperature.
- B. Rise in sea level
- C. Melting of glaciers
- D. All of them
|
| 5 |
Which gas saves the surface of earth from ultra violet radiation? |
- A. CO<sub>2</sub>
- B. CO
- C. N<sub>2</sub>
- D. O<sub>3</sub>
|
| 6 |
About 99% atmosphere's lies within: |
- A. 30 kilometre
- B. 35 kilometre
- C. 15kilometre
- D. 11 kilometre
|
| 7 |
Which gas is also known as life gas for plants. |
- A. CO
- B. CO<sub>2</sub>
- C. O<sub>2</sub>
- D. NO<sub>2</sub>
|
| 8 |
Major portion of ozone layer is foun in. |
- A. Troposphere
- B. Stratosphere
- C. Mesosphere
- D. Thermosphere
|
| 9 |
The envelope of different gases around the earth is called. |
- A. Atmosphere
- B. Brosphere
- C. Lithosphere
- D. Hydrosphere
|
| 10 |
The smell of photocopies machine is due to the presence of. |
- A. Chlorine gas
- B. Neon gas
- C. Helium gas
- D. Ozone gas.
|
