- (A) Methemoglobinemia
- (B) Gastroenteritis
- (C) Asphyxiation
- (D) Tooth decay
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- (A) Packed scrubber
- (B) Gravity settling chamber
- (C) Electrostatic precipitator
- (D) Hydrocyclone
- (A) The concentric layer in atmosphere which contains about 70% of the total mass of atmosphere and characterised by a steady decrease in temperature is called stratosphere
- (B) Stratosphere is rich in ozone and is located just above the troposphere
- (C) Troposphere is a turbulent dusty zone containing much of water vapor and clouds
- (D) The earth’s atmosphere is an envelope of gases extending upto a height of about 200 kms
- (A) HF
- (B) SO2
- (C) H2S
- (D) Both
- (A) Chloro-alkali industry
- (B) Tanneries
- (C) Beverage plant
- (D) Phosphoric acid plant
- (A) Dissolved oxygen content
- (B) Biological oxygen demand
- (C) Vapor pressure
- (D) All
- (A) Phenol and cyanide
- (B) Chlorine
- (C) Alkalis
- (D) Suspended solids
- (A) Wet scrubber
- (B) Bag filter
- (C) Electrostatic precipitators
- (D) Dust catcher
- (A) Aerobic
- (B) Pathogenic
- (C) Anaerobic
- (D) Non-pathogenic
- (A) 10
- (B) 90
- (C) 800
- (D) 750
