GEOGRAPHY
Water
Resources
FARHAN ALI
, FARHAN ALI
water resources
Water is a renewable resource.
Three-fourth of the Earth‘s surface is
covered with but only a small proportion of
it accounts for freshwater fit for use.
Freshwater is mainly obtained from surface runoff and
groundwater that is continually being renewed and
rechanged through the hydrological cycle.
96.5% of the total volume of the world’s water is
estimated to exist as oceans and only 2.5% as freshwater.
70% of total freshwater is present as frozen ice in
icebergs and glaciers.
A little less than 30% of total freshwater is stored as
groundwater.
India receives nearly 4% of the global precipitation and
ranks 133 in the world in terms of water availability per
person per annum.
The total renewable water resources in India are
estimated at 1,897 sq km per annum.
By 2025, it is predicted that large parts of India will join
countries and regions having absolute water scarcity.