Environmental Engineering in CE Lung cancer & DNA breakage are the major ill effects of excessive ozone exposure to human beings. Ozone layer depletion in the atmosphere is mainly caused by the presence of CFC (chloro fluoro carbon) SO₂ CO₂ Hydrocarbons CFC (chloro fluoro carbon) SO₂ CO₂ Hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise level inside a jet air liner in normal flight is about __________ decibels. 145 100 125 80 145 100 125 80 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Waste/polluted water discharged from electroplating, blast furnace and coal mining industries contain mainly __________ substances. None of these Organic Radioactive Inorganic None of these Organic Radioactive Inorganic ANSWER DOWNLOAD EXAMIANS APP
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 Ozone Carbon dioxide Hydrogen None of these Ozone Carbon dioxide Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is a green house gas other than CO₂ ? Methane Chlorofluro carbons (CFC) Nitrous oxide All of these Methane Chlorofluro carbons (CFC) Nitrous oxide All of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Oil and grease present in an emulsified state in waste water discharged from industries can be removed by Settling out using chemical reagents Chlorination Skimming off Biological oxidation Settling out using chemical reagents Chlorination Skimming off Biological oxidation ANSWER DOWNLOAD EXAMIANS APP
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