1 |
Forest fires and burning of wood emit. |
CO<sub>2</sub>
NO<sub>2</sub>
SO<sub>2</sub>
Cl<sub>2</sub>
|
2 |
Fossil fuel means. |
Coal
Petroleum
Natural gas
All of them
|
3 |
Which gas is emitted due to volcanic eruption? |
CO<sub>2</sub>
SO<sub>3</sub>
NO<sub>2</sub>
H<sub>2</sub>
|
4 |
99% of atmosphere consists of . |
N<sub>2 </sub>and H<sub>2</sub>
N<sub>2</sub>and O<sub>2</sub>
N<sub>2</sub>and CO<sub>2</sub>
O<sub>2</sub>and CO<sub>2</sub>
|
5 |
Which of the following is a secondary pollutant. |
CO<sub>2</sub>
CO
SO<sub>3</sub>
HF
|
6 |
PAN stands for |
Poly aniline nitrate
Proxy acetyl nitrate
Poly acetyl nitrite
Proxy acetyl nitrite
|
7 |
The smell of photocopies machine is due to the presence of. |
Chlorine gas
Neon gas
Helium gas
Ozone gas.
|
8 |
The waste products driven out because of the combustion of fossil fuels. |
Primary pollutant
Secondary pollutant
Tertiary pollutant.
None of them
|
9 |
Which of the following is a poisonous gas. |
Oxygen
Ozone
Nitrogen
Carbon dioxide
|
10 |
Ozone has a smell |
Bitter
Rotten egg
Sweat
None of them
|
11 |
Which pollutant is responsible for changing weather? |
Air pollutant
Water pollutant
Soil pollutant
All of them
|
12 |
Which factor determines the severity of a pollutant? |
Chemical nature
concentration
Persistence
All of them
|