Water Pollution

The water constitutes an indispensable natural element for the development of the life and of the human activities; it is difficult to imagine any activity type in which is not used, in another way.
In our planet it covers 75% of their surface, but not all the water is under capable conditions for the human use. 97.5% of the water is salted, the 2.5% resultant is sweet water distributed in lakes, rivers, streams and reservoirs; this minimum proportion is the one that we can use with but easiness.

The water to meet different needs becomes a resource. However not all the people have him. This happens for several reasons, among which they can mention him the unequal natural distribution of the water in the terrestrial surface. This impossibility takes to situations of shortage that doesn't have exclusively natural, but rather also social causes. This allows us to say that a narrow relationship exists between the possibility of supply and the development, because as much as adult is the development, adult it is the capacity to obtain it and adult is the contamination.

The humanity requires the water every time in more quantities to carry out her activities. The biggest consumption of water is also due to the increment of you practice them of agricultural irrigation, to the great industrial development or the existence of consumption habits that, in occasions, they imply its waste.