| 1 |
Which pollutant is responsible for changing weather? |
- A. Air pollutant
- B. Water pollutant
- C. Soil pollutant
- D. All of them
|
| 2 |
The smell of photocopies machine is due to the presence of. |
- A. Chlorine gas
- B. Neon gas
- C. Helium gas
- D. Ozone gas.
|
| 3 |
Building are being damaged by acid rain because it attacks. |
- A. Calcium sulphate
- B. Calcium nitrate
- C. Calcium carbonate
- D. Calcium oxalate
|
| 4 |
In the troposphere (lowest layer), the temperature decreases form 17°C to; |
- A. -58°C
- B. -93°C
- C. -61°C
- D. -49°C
|
| 5 |
Ozone layer is not found is |
- A. Upper stratosphere
- B. Mid stratosphere
- C. Lower stratosphere
- D. All of them
|
| 6 |
Acid rain damages the building it is due to reaction on. |
- A. Calcium sulphate
- B. Calcium nitrate
- C. Calcium carbonate
- D. Calcium oxilat
|
| 7 |
The major constituents of troposphere are: |
- A. carbon dioxide and argon
- B. nitrogen and oxygen
- C. argon and oxygen
- D. carbon dioxide and oxygen
|
| 8 |
Ozone has a smell |
- A. Bitter
- B. Rotten egg
- C. Sweat
- D. None of them
|
| 9 |
Which pollutant is not found in car exhaust gases? |
- A. CO
- B. O<sub>3</sub>
- C. NO<sub>2</sub>
- D. SO<sub>3</sub>
|
| 10 |
Global warming causes rising of the sea level. The cause of global warming is. |
- A. CO<sub>2</sub> gas.
- B. SO<sub>2</sub>gas.
- C. NO<sub>2</sub>gases.
- D. O<sub>3</sub>gas.
|
