In which of the following layer of atmosphere there is more thickness of ozone layer ?
A. troposphere
B. stratosphere
C. mesosphere
D. photosphere
Submitted by :- Jamil Ahmed
Which of the following is not a condition for the formation of smog ?
A. sufficient NO
B. sunlight
C. less movement of air
D. winds
Submitted by :- Jamil Ahmed
Acid present in acid rain may be__________________?
A. H2SO4
B. HNO3
C. both A and B
D. none
Submitted by :- Jamil Ahmed
Hypochlorous acid is used for disinfecting the water it reacts with the dissolved ammonia producing___________________?
A. NH2Cl
B. NHCI2
C. NCI2
D. all of the above
Submitted by :- Jamil Ahmed
Which of the following is not primary pollutant__________________?
A. SO3
B. CO
C. NO
D. H2SO4
Submitted by :- Jamil Ahmed
The yellow colour in photochemical smog is due to presence of_______?
A. dinitrogen oxide C. chlorine gas
B. nitrogen dioxide D. chlorine dioxide
Submitted by :- Jamil Ahmed
Major cause of SO2 on global scale is__________________?
A. volcanoes
B. electric sparks
C. combustion
D. all
Submitted by :- Jamil Ahmed
Which of the following is not a secondary pollutant_________________?
Pollutants have adverse effect over_________________?
A. Biosphere
B. Ecosystem
C. Both a & b
D. Hydrosphere
Submitted by :- Jamil Ahmed
The main product of bacterial action is_________________?
A. Nox
B. NO2
C. N2O3
D. NO
Submitted by :- Jamil Ahmed