Fluorosis is caused due to the presence of excessive amount of ______________ in drinking water?

Related Mcqs:

Pick out the wrong statement ?

A. The concentric layer in atmosphere which contains about 70% of the total mass of atmosphere and characterised by a steady decrease in temperature is called stratosphere B. Stratosphere is rich in ozone and is located just above the troposphere C. Troposphere is a turbulent dusty zone containing much of water vapor and clouds D. … Pick out the wrong statement ?Read More...

Which of the following is a manmade source of air pollution ?

A. Automobile exhaust B. Forest fire C. Bacterial action in soil and swamp areas D. All A., B. and C....

Most efficient and suitable dust removal equipment for removal of fly-ash from flue gas in a thermal power plant is the__________________?

A. Gravity settling chamber B. Cyclone separator C. Electrostatic precipitator D. Bag filter...

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

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

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

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