Answer:
The
above concern of depletion of ground water, pollution of river water is true
and simultaneously the rain water harvesting is also a very small portion to
the requirement. The future is in stake of course.
Rain water harvesting may only sustain the human being but it cannot
sustain the ecology.
As ground water is depleting it affects the plant or fauna
in the region as they also depend on this ground water. River water is polluted
now and in some occasions rivers are biologically dead that could not sustain life
anymore. Many major rivers are polluted, almost all small rivers are toxicated
that put huge pressure on aquatic ecosystem. Often this contaminated water
pollute the flood plain and ground water underneath during flood and create
much disease and health hazards to both flora and fauna.
Human being may arrange a short term solution to the
ecological crisis but in long term it will affect them as they are also a part
of the ecology. The situation is quite serious throughout India and may bring
Pan-India ecological crisis if proper conservation strategies are not taken to
reduce such pressure on fresh water.
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