A. Respiratory disease (e.g. asthma)
B. Asphyxiation (suffocation) leading to death
C. Retardation in crop growth
D. Damage to building materials like marble
Answer: Option B
This Question Belongs to Chemical Engineering >> Environmental Engineering In CE
Fluorosis is caused due to the presence of excessive amount of __________ in drinking water.
A. Mercury
B. Lead
C. Fluoride
D. Arsenic
Smog is not formed due to the presence of __________ in the atmosphere.
A. SO2
B. NOx
C. CO2
D. Any of these
Dose of chlorine for disinfection of water is about __________ mg/litre of water.
A. 0.01
B. 0.1
C. 0.3
D. 1
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