Septic tanks are used for the ______________ of the deposited solids?

Related Mcqs:

Global warming may result in __________________?

A. Flood B. Cyclone C. Decrease in food productivity D. All A., B. and C....

Removal of ______________ is accomplished by aeration of water?

A. Dissolved gases B. Suspended solids C. Dissolved solids D. None of these...

Brown spots in fabrics will be caused by washing with water containing large amount of___________________?

A. Iron B. Zinc C. Iodine D. Bromine...

Hazardous/polluting chemical industries should have an ‘exclusion zone’ with a green belt and general public access prohibited around it, covering a radius of _____________ metres?

A. 100 B. 1000 C. 400 D. 4000...

Atmospheric pollution caused by the exhaust gas of supersonic transport air-crafts is mostly in the atmospheric region called________________?

A. Thermosphere B. Stratosphere C. Troposphere D. Mesosphere...