Expand the term CNG.
Compressed national Gas
Compression of Nature by Gas
Compressed Natural Gas
Collection of Natural gas
Air contains ___ % of oxygen.
20.9%
0. 3%
78%
20%
Prevention and control of pollution Act for water established in ___________ year.
1974
1981
1986
1980
Most of the environmental problems are due to increase of
Water
Animals
Rain
Population
_______ decrease the productivity of the soil.
Grass
Garbage
Factory waste
Fertilizers
Much damage to soil is caused by _______ than pollution.
Farming
construction projects
Erosion
Which rays enter into earth, if ozone layer is destructed
UV rays
Gamma rays
Infrared rays
Beta rays
Thermal pollution reduces amount of _________ gas in water.
O2
CO2
N2
CO
Expand the term CFC
Chloro Fluro Carbon
Chlorine fluoride Carbon
Chloride fluorine carbon
Chloro fluoride carboxide
Waste water released from homes and industries is called
sewage
garbage
bore hole
sullage
