A. Industrial chimney exhaust
B. Forest fire
C. Automobiles exhaust
D. Photochemical oxidation of organic matter
A. Incineration
B. Biological oxidation
C. Composting
D. None of these
A. SO2 & SO3
B. NO2
C. NH3
D. CO
A. Filtration
B. Digestion
C. Sedimentation
D. Both B. and C.
A. Quenching of hot coke
B. Discharging in the river stream
C. Filtration and recycling for cooling coke oven gas
D. None of these
A. Paralysis of muscles & loss of appetite
B. Nervous depression
C. Gastritis and diarrhea
D. All A., B. and C.
A. Air binding
B. Shrinkage of filtering media
C. Mud balls
D. Expansion of filtering media
A. 1 to 2
B. 4 to 5
C. 9 to 10
D. 15 to 20
A. Reduction in strength of leather & cloth
B. Acceleration of corrosion rates of metals
C. Increased drying & hardening time of paints
D. All A., B. and C.
A. Cancer
B. Bronchitis
C. Asphyxiation
D. Corrosion