The least preferred technique in the disposal of Municipal Solid Waste is
Incineration
Composting
Land filling
Land filling
D.
Land filling
Which of the following is used as non-stick coating for cooking utensils?
Perspex
Styrofoam
Polystyrene
Polystyrene
Which of the following vitamins help in the absorption of calcium?
Vitamin A
Vitamin D
Vitamin B
Vitamin B
Which of the following gases is known as 'Laughing Gas'?
Nitrous oxide
Nitrogen peroxide
Nitrogen
Nitric oxide
Particulates ( 1μ mg ) remaining suspended in air indefinitely and transported by wind currents are called
Mists
Fumes
Aerosols
Smoke
Which of the following is not a commercial source of energy?
Coal
Petroleum
Natural Gas
Natural Gas
If waste materials contaminate the source of drinking water, which of the following diseases will spread?
Scurvy
Typhoid
Malaria
Malaria