There
is so much of water on the earth's surface that our mother planets appears blue
from the space, so it is also called Blue Planet or Watery Planet. Despite the
fact that water is very abundant, all of it cannot be used, so there is
scarcity of usable water.
· * Nearly 97% of
total water is in the oceans, but it is saline, and cannot be used.
· * In addition, more
than 2% of water is in the frozen state and is deposited in the ice-caps and
glaciers, which again is not available for use.
· * Then there is
some water in the form of evaporation and groundwater.
Thus,
we are left with a very little amount of water.
Recycling
of Water : Thank the nature, it recycles for us. This process of recycling
involves evaporation, condensation and precipitation. At first, the water
evaporates from water bodies and plants; then it condenses in the form of
clouds; and at last, it falls to the ground as rainfall or snowfall. Some of
this precipitation becomes part of ice-cap or glaciers, and the remaining water
flows in rivers and canals. Some water seeps into the ground and becomes groundwater.
This process is called water cycle or hydrological cycle.
Thus,
water is found in different forms : solid,
liquid and gas. Water in its gaseous form is responsible for producing all
freshwater resources on the earth through the process of precipitation.
Why
Do We Face Scarcity of Water?
It
is a pertinent question why we face scarcity of water. We use water in three
main ways :
1.
Domestic Use : We
need water at home for drinking, cooking, washing, bathing etc. This type of
use is not very large. The water is disposed of in the drains, from where it
flows into water bodies.
2.
Agricultural Use :
A lot of water is consumed in irrigating the fields for growing crops. A large
amount of this water flows back to the river bodies. So, this type of use is
not very large.
3.
Industrial Use : Water
is extensively used in industries for washing and processing. Once again, this
water is allowed to flow into drains which ultimately flow into major water
bodies.
The
Big Question : If water from all types of uses goes back to water bodies, why
is there its scarcity? Its answer is simple.
·
We pollute water
when we use it.
·
And then we allow
this polluted water to go back to clean water bodies, polluting them too.
Thus,
we pollute more water than we use it. Ultimately, we get water from polluted
water bodies. Have you read in newspapers about dirty water being
supplied by the municipality? This is because we have dirtied our water bodies.
Therefore, it is essential that we take adequate steps
to meet the scarcity which we have created by our own actions.
No comments:
Post a Comment