Thermal pollution reduces amount of _________ gas in water.
O2
CO2
N2
CO
Process of waste water treatment is known as
Sullage
Garbage treatment
drainage treatment
Sewage treatment
Waste water released from homes and industries is called
sewage
garbage
bore hole
sullage
Mosquitoes breed is stagnant water and cause
Fever
Cough
Sneezing
Malaria
Which rays enter into earth, if ozone layer is destructed
UV rays
Gamma rays
Infrared rays
Beta rays
Much damage to soil is caused by _______ than pollution.
Farming
Garbage
construction projects
Erosion
_______ decrease the productivity of the soil.
Grass
Factory waste
Fertilizers
Expand the term CFC
Chloro Fluro Carbon
Chlorine fluoride Carbon
Chloride fluorine carbon
Chloro fluoride carboxide
Carbon dioxide and _________ are the green house gases.
Oxygen
Nitrogen
Carbon monoxide
Methane
Prevention and control of pollution Act for water established in ___________ year.
1974
1981
1986
1980