Saltwater is abundant
Saltwater is not useful when it comes to potable water
Desalination plants help to make fresh water but they are
few because the energy required for desalination makes the
process extremely expensive.
We benefit from saltwater resources.
Saltwater fish are a staple in much of the India's coastal
Tidal waters are being used as a source of hydroelectric
Groundwater is the most plentiful of all freshwater
As water soaks into the ground, some of it adheres to
clay and soil to provide water to the plants.
Gravity moves the water down through the ground.
Eventually, the water reaches the saturated zone,
where all the pores are filled with water.
The separation between the saturated and
unsaturated zone is called the water table.
There is significant interaction between surface
water and ground water. Groundwater feeds surface
water through springs.
Surface water can also recharge groundwater supply.
Groundwater is accessed by wells & bore-wells.
Surface water is the water that exists in streams, rivers
This water is used for potable water supply, recreation,
irrigation, industry , livestock, transportation and
Over 63 percent of the public water supply is
withdrawn from surface water. Irrigation gets 58% of
its water supply from surface water. Industry gets
almost 98 percent of its water from surface water
systems. Therefore, surface water conservation and
quality is of utmost importance.