Main pollutant present in automobile exhaust is_________________?
Main pollutant present in automobile exhaust is_________________?
A. CO
B. CO2
C. NO
D. Hydrocarbons
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Siderosis is a disease caused by the inhalation of ______________ dust?
Siderosis is a disease caused by the inhalation of ______________ dust?A. Coal
B. Silica
C. Iron
D. None of theseA ‘body’ which allows the short wavelength incoming solar radiation to enter in, but does not allow long wave length outgoing infra red radiation to escape out is called the________________?
A ‘body’ which allows the short wavelength incoming solar radiation to enter in, but does not allow long wave length outgoing infra red radiation to escape out is called the________________?A. Global warming
B. Green house
C. Atmospheric effect
D. IonosphereColor test of water is done with an instrument called__________________?
Color test of water is done with an instrument called__________________?A. Tintometer
B. Colorimeter
C. Electro-chemical cell
D. TurbidimeterPeroxyacetyl nitrate (PAN), a pollutant is found in the_________________?
Peroxyacetyl nitrate (PAN), a pollutant is found in the_________________?A. Automobile exhaust
B. Flue gas of coal based power plant
C. Exhaust of nitric acid plant
D. Exhaust of sulphuric acid plantSmog is ______________________?
Smog is ______________________?A. Nothing but black smoke
B. A combination of smoke and fog
C. A liquid particle resulting from vapor condensation
D. A solid particle e.g. fly-ashPresence of ____________ in water stream are deleterious to aquatic life?
Presence of ____________ in water stream are deleterious to aquatic life?A. Soluble and toxic organics
B. Suspended solids
C. Heavy metals and cyanides
D. All A., B. & C.