12-02-2005, 05:21 PM
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#3 (permalink)
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Simply the Best
Join Date: Oct 2005
Posts: 469
NAR has a spectacular aura about 
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Bonjour!
Je vous propose quelques modifications :
Water is an exhaustible resource, while the human population keeps expanding. According to the United Nations, we need 50 litres of water daily in our everyday tasks. Still, not everyone can satisfy this need.
Quantity of water is not the only important criterion – quality matters equally. In effect, the amount of drinking water has diminished because of pollution. This pollution has stemmed not only because of urbanization, but equally because of man’s wrongdoings.
70% of water is earmarked for the agricultural sector. As such, if the water is polluted, crops will equally be contaminated, meaning that the population will in turn, be contaminated. In countries facing scarcity of water, inhabitants must walk a long way to fetch water. Added to that, they pay for water at a high price and they are uncertain about its quality.
It is equally a source of conflicts, as is the case for the Nile, which flows across ten countries. In the upstream, dams built lead to less abundant floods and a meager water flow.
New technologies have been implemented with a view to lowering pollution, such as the purification stations. In hot countries or in countries where water is rare, desalinization stations have been built so as to make sea water drinkable. Their drawbacks: costly and consume tremendous amount of energy.
Certain countries build wells which draw groundwater, thereby providing them with water, but this bears consequences in the long run such as the exhaustion of groundwater and the disappearance of vegetation. Water is useful not only to man, but equally to plants and animals.
Last edited by NAR; 12-03-2005 at 09:24 AM.
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