THE LAKES

The lakes by the generally are of water sweet, of a long considerable, that is found separate of sea. The contribution of water to the lakes comes of the river, the lakes is form of depressions topographical created by a variety of processes geological how movements  tectonic, movements of mass, between other.


the large lakes that not exit to the sea also called "sea closed" how the sea caspio. the lakes are fed by one or more rivers waters up, already is by suggestion or by glaciers, the water is drains of form nature, mainly by a river called emissary or by evaporation, are a important reservation of water sweet.

THE RIVER

The river and their tributaries are the veins what provied water to the wetlands, to the lakes and to the sea, lead nutrients by medium of ecosystems maintaining thousands of sspecies live howener are being contaminated by the waste so much urban how come industrial, so how come our waste liquids. In Colombia the main sourse fluvial this is the rive Magdalena, you have length of more of 1500 km, is navigable, and its main tributary is the rive cauca, this rive born in the lagoon of the magdalena, its termination is in the sea caribe, is by this what we must take care for its good conservation natural.

A rive you have three parts: 

• course high
• course medium
• course low

from the point of view of the biosphere, the river contains a great reservation of water sweet, the what is of access for all the being living.

THE NATURE

The nature is a sense more wide, is equivalent to the world natural, the term ago reference to the           phenomenon of world physical, and you also to the life in general. The word "nature" comes of the word  naturist, what means the "course of the animals". 

This composed by various beings living, how come plants and animals, and in some cases to the processes associated with the objects inanimate, to often is considered what means "environment nature": animals wild, rocks, forests, beaches and in general all the stuff what not have was altered substantially by the be human, by that is should protect and care already what is beautiful and full of wonders by find out.