Environmental Engineering in CE
Higher concentration of CO₂ in atmosphere

Prevents solar heat being radiated out completely, resulting in
Reflects and absorbs the longer wavelength (infra-red) radiations
Allows visible solar radiation (ultraviolet) of short wave-length to pass through
All of these

ANSWER DOWNLOAD EXAMIANS APP

Environmental Engineering in CE
Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in

Coagulation and flocculation of colloids
Nitrification or oxidation of ammonia derived from breakdown of nitrogeneous organic matter to the nitrite and eventually to the nitrate
All of these
Oxidation of carbonaceous matter to CO₂

ANSWER DOWNLOAD EXAMIANS APP