Average annual rainfall at any station is the average of annual rainfall over a period of________________?

Related Mcqs:

Disinfection of drinking water, is done to remove_________________?

A. odour B. bacterias C. turbidity D. colour...

The yield of a rapid gravity filter as compared to that of slow sand filter, is__________________?

A. 10 times B. 15 times C. 20 times D. 30 times E. 35 times...

The underground sources of water, is from______________?

Pick up the incorrect statement from the following? A. wells B. springs C. infiltration wells D. storage reservoirs E. none of these...

By boiling water, hardness can be removed if it is due to_________________?

A. calcium sulphate B. magnesium sulphate C. calcium nitrate D. calcium bicarbonate E. none of these...

Aeration of water is done to remove______________?

A. odour B. colour C. bacterias D. hardness E. turbidity...