Chemical Environmental Engineering

A. Air
B. Water
C. Noise
D. Radioactive

A. Refrigerators
B. Xerox machines
C. Dermatological photo-therapy equipments
D. High voltage electrical equipments

A. By reaction of hydrocarbon & nitric oxide in presence of sunlight
B. Appears only on sunny days
C. Is harmful for crops and trees also besides causing eye irritation & asthma
D. All A., B. & C.

A. Asphyxiation
B. Shortness of breath
C. Tuberculosis
D. Both B. & C.

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

A. Chlorine
B. Alkalis
C. Benzene hexachloride
D. Alkyl benzene sulphonate (ABS)

A. Bone decay
B. Cancer
C. Asphyxiation (suffocation)
D. Anemia

A. Turbidity
B. Color
C. Hardness
D. Dissolved gases

A. Foodstuffs
B. Woolen clothes
C. Metallic powder
D. None of these

A. Grey
B. Dark brown
C. Red
D. Black