Chemical Environmental Engineering

A. Oxidation
B. Reduction
C. Dehydration
D. Fermentation

A. Combustion
B. Urea
C. Biomass burning
D. Trees

A. Tintometer
B. Colorimeter
C. Electro-chemical cell
D. Turbidimeter

A. 10 to 20
B. 100 to 200
C. 1500 to 2500
D. 4000 to 5000

A. Cesspool
B. Lagoon
C. Skimming mill
D. Septic tank

A. 60
B. 90
C. 105
D. 120

A. 0.001 to 0.01
B. 0.2 to 0.3
C. 2 to 3
D. 5 to 10

A. Asphyxiation (suffocation)
B. Shortness of breath
C. Tuberculosis
D. All A., B. and C.

A. 2 to 4
B. 8 to 12
C. 16 to 20
D. 24 to 32

A. Fats
B. Carbohydrates
C. Salts of metals
D. Protein