Water resorces

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Water resorces

  1. 1.  Water resources are defined as the sources by which we can get the water for our different types of uses.  Water resources play a vital role in our day to day life.
  2. 2. Uses of water include: Agricultural, Industrial, Household, Recreational and Environmental activities. Virtually all of these human uses require fresh water.
  3. 3. Types of water resources available in India
  4. 4.  Sea / Oceans
  5. 5.  Saltwater is abundant  Saltwater is not useful when it comes to potable water     supplies. 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 diet. Tidal waters are being used as a source of hydroelectric energy.
  6. 6.  Surface water:  Rivers  Lakes  Ponds  Dams
  7. 7.  Groundwater:  Well  Bore-wells
  8. 8.  Groundwater is the most plentiful of all freshwater     resources. 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.
  9. 9.  Surface water can also recharge groundwater supply.  Groundwater is accessed by wells & bore-wells.  Surface water is the water that exists in streams, rivers and lakes.  This water is used for potable water supply, recreation, irrigation, industry , livestock, transportation and hydroelectric energy.  Over 63 percent of the public water supply is withdrawn from surface water.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.

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