Chemical Environmental Engineering

A. 0.05
B. 1
C. 6.5
D. 15

A. Chlorine
B. Irradiation of water by ultraviolet light
C. Cation exchanger
D. Coagulation

A. Volcanic eruptions and lightening discharges
B. Biological decay of vegetable matter
C. Photochemical oxidation of organic matter
D. None of these

A. Turbidity
B. Odour
C. Hardness
D. Bacteria

A. EDTA
B. Electometric
C. Total count
D. Presumptive

A. Dissolved solid
B. Suspended solid
C. Oil & fatty
D. Gritty & inorganic

A. CO2
B. SO2
C. Hydrocarbons
D. CFC (chloro fluoro carbon)

A. Thermosphere
B. Troposphere
C. Stratosphere
D. None of these

A. Automobile exhaust
B. Forest fire
C. Bacterial action in soil and swamp areas
D. All A., B. and C.

A. Coal mining
B. Limestone mining
C. Textile
D. Asbestos