| 1 |
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>
|
| 2 |
The formula of ozone is. |
- A. O<sub>2</sub>
- B. O<sub>3</sub>
- C. O
- D. CO
|
| 3 |
The sphere just above the Earth's surface is. |
- A. Mescosphere
- B. Stratosphere
- C. Thermosphere
- D. Troposphere
|
| 4 |
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>
|
| 5 |
The percentage of SO<sub>2 </sub>released by the combustion of coal and petroleum product. |
- A. 40%
- B. 60%
- C. 70%
- D. 80%
|
| 6 |
The process by which atmospheric nitrogen is turned into nitrates in the soil is called. |
- A. Nitration
- B. Fixing
- C. Oxidation
- D. Reduction
|
| 7 |
Which is not a character of SO<sub>2</sub> |
- A. it is a colourless gas
- B. It has irritating smell
- C. It causes suffocation
- D. It do not form sulphuric acid
|
| 8 |
PAN stands for |
- A. Poly aniline nitrate
- B. Proxy acetyl nitrate
- C. Poly acetyl nitrite
- D. Proxy acetyl nitrite
|
| 9 |
Mesosphere has a temperature range. |
- A. 17 <sup>o</sup>C - 58<sup>o</sup>C
- B. 58<sup>o</sup>C - 2<sup>o</sup>C
- C. 2<sup>o</sup>C - 93<sup>o</sup>C
- D. - 93<sup>o</sup>C
|
| 10 |
The layer above troposphere extend upto 50 kilometers called. |
- A. Mesosphere
- B. Hydrosphere
- C. Stratosphere
- D. Thermosphere
|
