Environmental Engineering in CE Which of the following processes is involved in the biochemical treatment of sewage effluents? Dehydration Reduction Fermentation Oxidation Dehydration Reduction Fermentation Oxidation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not an air pollutant? Pesticides Ozone Metallic powders Carcinogens Pesticides Ozone Metallic powders Carcinogens ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a secondary air pollutant? Photochemical smog All of these Sulphur dioxide Ozone Photochemical smog All of these Sulphur dioxide Ozone ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Fluorosis (a bone disease) is caused by the presence of high concentration of __________ in atmospheric air. Hydrogen flouride Hydrocarbons Nitrogen dioxide Hydrogen sulphides Hydrogen flouride Hydrocarbons Nitrogen dioxide Hydrogen sulphides ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Oceans act as sinks for atmospheric gases including carbon dioxide whose concentration in the atmosphere is increased by the Forestation Vegetation Green house effect Rain Forestation Vegetation Green house effect Rain ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Replenishment of dissolved oxygen in water stream polluted with industrial waste occurs by Photosynthetic action of algae Natural aeration of water stream Both A & B Neither A nor B Photosynthetic action of algae Natural aeration of water stream Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
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