(i) Man is the most intelligent animal on this planet.
(ii) On the Earth, human being proved his superiority as compared to other animals with the help of characters like intelligence, memory, imaginary ability etc.
(iii) Humans established domination over the nature.
(iv) Man utilized all the natural resources as much as possible.
(v) In an attempt to live a satisfactory life, human being kept on snatching from the environment as much as possible and this leads to disturbance of environmental balance.
(vi) Hence, environmental pollution is increasing day by day.
(vii) Industrialization, urbanization, deforestation, construction of bridges and dams even housing lead to create and increase environmental problems.