Environment means the surroundings. Land, water, air, plants,
animals, solid wastes and other things that are surrounding us
constitute our environment. Man and environment are closely intertwined
with each other, to maintain a balance or equilibrium in nature.
Different groups of people working in different areas express it in
various ways. When physical scientists talk about environment they
generally refer to the physical environment that comprises the three
inter locking systems the Atmosphere, the Hydrosphere and the
Biologists often refer to biological environment consisting of all
living organisms of the Biosphere. Similarly social scientists refer to
the social, cultural, economic and organizational environment.
Hence environment may be defined as "the sum of all social, cultural,
economical, biological, physical and chemical factors surrounding the
'man' to give necessary protection to him."