Environmental Engineering in CE The lowest layer of atmosphere is known as the Stratosphere Ionosphere Troposphere None of these Stratosphere Ionosphere Troposphere None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Death may occur, when SO₂ concentration in atmospheric air exceeds __________ ppm. 200 100 20 400 200 100 20 400 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE BOD of raw municipal sewage may be in the range of about __________ mg/litre. 150-300 1-2 2000-3000 5-10 150-300 1-2 2000-3000 5-10 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of carbon monoxide in atmosphere produced by decomposition of chlorophyl and haemoglobin breakdown of some animals, beyond TLV (>50 ppm) Causes asphyxia Inhances the green house effect Acts as a green house gas thereby raising earth's temperature Causes increase in sea level Causes asphyxia Inhances the green house effect Acts as a green house gas thereby raising earth's temperature Causes increase in sea level 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 Radioactive Organic Inorganic None of these Radioactive Organic Inorganic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of __________ hardness is responsible for the temporary hardness in water. Calcium Carbonate Choride Sulphate Calcium Carbonate Choride Sulphate ANSWER DOWNLOAD EXAMIANS APP
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