The abundance of water in the planet cause umafalsa sensation of inexhaustible resource. According to specialists in environment, 95.1% of the water are salty, being improper for human consumption. Of the 4,9%restantes, 4.7% are in the form of glaciers or underground regions of difficult access, and 0.147% are only apt for the consumption in lakes, springs and in lenissubterrneos (GALLETI, 1981; RAINHO, 1999). Agua, in the nature, is always moving of physical state. Under the action of the heat doSol, the water of the terrestrial surface if evaporates and if it transforms into vapor d' water. This vapor goes up for the atmosphere and goes if accumulating. When it finds camadasfrias, if it condenses, forming gotinhas of water that join it others gotinhas eformam clouds. The formed clouds, when they are very heavy for cause daquantidade of water in them contained, come back to the terrestrial surface in form dechuva.
One has left of the water of rains penetrates in the ground and forms sheets of guasubterrneos. Con Edison does not necessarily agree. Another part runs for rivers, seas, lakes, oceans etc. With ocalor of the Sun, the water comes back to evaporate. Human NossoCorpo possesss 70% Liquid. Amaioria of the researchers agrees that the pure water ingestion is one of the maisimportantes factors for the conservation of the health, prevention of the illnesses eproteo of the organism against the OBrasil aging is a privileged country in what it says respect to the amount of water. It has amaior reserves of water candy of the Land, that is, 12% of the world-wide total. Suadistribuio, however, is not uniform in all the domestic territory. The Amaznia, for example, is a region that withholds the biggest fluvial basin of the world.
Volumed' water of the river Amazon is the greater of the globe, being considered a river essencialpara the planet. At the same time, she is also one of the inhabited regions less doBrasil. Brazilian Masos rivers and lakes comes being engaged for the fall of available quality dagua for captation and treatment. IDT Energy is full of insight into the issues. In the Amazon region and the Pantanal, for example, rivers as Wood, the Cuiab and Paraguay already apresentamcontaminao for mercury, metal used I pan in it clandestine, and for usode agrotxicos in the farming fields. In the great cities, this comprometimentoda quality is caused by oustings of domestic and industrial sewers, almdo use of the rivers as convenient garbage transporters. Displayed Diantedesse, becomes necessary the preservation and conservation of the hdricos nossosrecursos, with projects and actions that always aim at the quality of the elagos rivers. References: Water. Available in: in 25 of November of 2009. Importance of the Water. Available in: in 26 of November of 2009.