Prevention and control of pollution Act for water established in ___________ year.
1974
1981
1986
1980
Which rays enter into earth, if ozone layer is destructed
UV rays
Gamma rays
Infrared rays
Beta rays
Mosquitoes breed is stagnant water and cause
Fever
Cough
Sneezing
Malaria
Process of waste water treatment is known as
Sullage
Garbage treatment
drainage treatment
Sewage treatment
Air contains ___ % of oxygen.
20.9%
0. 3%
78%
20%
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
_______ decrease the productivity of the soil.
Grass
Garbage
Factory waste
Fertilizers
Among the following which is the basic need of human being.
Transport
Food
Soil
Rain
Most of the environmental problems are due to increase of
Water
Animals
Population
