Environmental Engineering in CE
Higher concentration of CO₂ in atmosphere

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

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Environmental Engineering in CE
Smoke is produced due to

Poor design & overloading of furnace
All of these
Insufficient supply of combustion air and insufficient time for combustion
Poor quality of fuel and improper mixing of fuel & combustion air

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