Main pollutant present in automobile exhaust is_________________?
Main pollutant present in automobile exhaust is_________________?
A. CO
B. CO2
C. NO
D. Hydrocarbons
A. CO
B. CO2
C. NO
D. Hydrocarbons
A. Coal
B. Silica
C. Iron
D. None of these
A. Global warming
B. Green house
C. Atmospheric effect
D. Ionosphere
A. Tintometer
B. Colorimeter
C. Electro-chemical cell
D. Turbidimeter
A. Automobile exhaust
B. Flue gas of coal based power plant
C. Exhaust of nitric acid plant
D. Exhaust of sulphuric acid plant
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-ash
A. Soluble and toxic organics
B. Suspended solids
C. Heavy metals and cyanides
D. All A., B. & C.