Environmental Engineering in CE The concentration of water vapour in troposphere, which depends upon the altitude & temperature varies in the range of zero to __________ percent. 1 8 12 4 1 8 12 4 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Biological oxidation ponds remove organic matters present in the polluted water by Using the activities of bacteria and other micro organisms Both A & B Neither A nor B Aerobic oxidation Using the activities of bacteria and other micro organisms Both A & B Neither A nor B Aerobic oxidation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Average human body contains about __________ percent water by weight. 20 70 40 85 20 70 40 85 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most major constituents of air pollutants? Oxides of nitrogen Oxides of sulphur Hydrogen sulphide Carbon monoxide Oxides of nitrogen Oxides of sulphur Hydrogen sulphide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ambient noise level can be reduced by __________ decibels by planting trees (like coconut, neem etc.) near public utility buildings (like hospitals & schools). 43961 43832 15-20 25-30 43961 43832 15-20 25-30 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most lethal water pollutant? Chlorine Alkalis Suspended solids Phenol and cynide Chlorine Alkalis Suspended solids Phenol and cynide ANSWER DOWNLOAD EXAMIANS APP