الاثنين، 13 سبتمبر 2010

97% of water on the Earth is salt water, leaving only 3% as fresh water of which slightly over two thirds is frozen in glaciers and polar ice caps.[1] The remaining unfrozen freshwater is mainly found as groundwater, with only a small fraction present above ground or in the air.[2]

Surface water is water in a river, lake or fresh water wetland

groundwater, is fresh water located in the pore space of soil and rocks. It is also water that is flowing within aquifers below the water table


Desalination is an artificial process by which saline water (generally sea water) is converted to fresh water. The most common desalination processes are distillation and reverse osmosis.

Frozen water to make use of icebergs as a water source,

Water is critical to all aspects of our lives. We need to protect the sources of our drinking water to safeguard the health and ensure there is enough water for everyone -- now and in the future.Whether we live in an rural or urban area, our drinking water comes from lakes, rivers, streams or underground sources (aquifers) located across the province. All of these sources of water are linked in a watershed through the water cycle. water that are useful or potentially useful to humans. Uses of water include agricultural, industrial, household, recreational and environmental activities. Virtually all of these human uses require fresh water.

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