Environmental Engineering in CE A considerable part of the harmful ultraviolet radiation of the sum does not reach the earth surface, because of the fact that, there is a layer of __________ high above earth's atmosphere, which absorbs it. None of these Hydrogen Carbon dioxide Ozone None of these Hydrogen Carbon dioxide Ozone ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum allowable noise exposure limits for a man working for 8 hours a day in a noisy chemical plant is about __________ decibels. 20 60 90 120 20 60 90 120 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Higher concentration of nitrogen dioxide in atmospheric air causes Cancer Bronchitis Asphyxiation Corrosion Cancer Bronchitis Asphyxiation Corrosion ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The average thickness of ozone layer in stratosphere is about __________ dobson unit (DU). 750 1500 230 20 750 1500 230 20 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of nitrogen and phosphorous in waste water discharged into lakes and ponds causes Foaming Undesirable plant growth Turbidity Odour nuisances Foaming Undesirable plant growth Turbidity Odour nuisances ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most severe air pollutant? SO₂ NOx Hydrocarbons CO SO₂ NOx Hydrocarbons CO ANSWER DOWNLOAD EXAMIANS APP
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