Disinfection of water is done to remove ______________________?

Related Mcqs:

Which of the following is not a weightless pollutant ?

A. SPM B. Thermal pollution C. Radioactive rays D. Noise pollution...

Out of the following, TLV of _______________ is maximum (about 500 ppm)?

A. Carbon dioxide B. Toluene C. Carbon disulphide D. Acetaldehyde...

Foul odour and bad taste of water is removed by treating with__________________?

A. Alum B. Bleaching powder C. Activated carbon D. Copper sulphate...

Aerosols present in atmospheric air may be__________________?

A. Positively charged B. Negatively charged C. Neutral D. Combination of all A., B. & C....

Oceans act as sinks for atmospheric gases including carbon dioxide whose concentration in the atmosphere is increased by the_______________?

A. Forestation B. Rain C. Green house effect D. Vegetation...