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Mostrando entradas de octubre, 2018

El sistema circulatorio en red

El sistema circulatorio es muy complejo; este contiene mas sistemas con diferentes características, componentes y funciones. A continuación un mapa conceptual con estos conceptos Mapa Mental creado con GoConqr por Luna R Hecho con: Valentina Crespo

Uses of fresh water

First, we saw a video about how different people are affected by the availability of water in different regions. Here is my feedbackabot that    The video vividly portrays a comparison between the living conditions on water poor and water rich countries. In the water rich country a boy wakes up and after breakfast, he fills his bottle; it can be seen how easily he can access to it, by just pressing a button. However, in the second video, after breakfast a girl fills her bottle in a lake; she can not even obtain water from her house. All along the video, the water poor country is seen as dirty and careless. The girl carries her bottle with filthy and brownish water all along her way. Finally the boy secretly exchanges the bottles and leaves her with the clean water; happily, she drinks it.    I think this is a very powerful video since it shows a reality that seems unreal; I mean, in my life, water is usually used and it seems so natural, but unfortunately it’s not like that for

Dams

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Advantages: Stop valley floods Power generation Higher water supply More farmland Disadvantages: People are forced to move Destruction of the natural environment Soil becomes less fertile Farmers have to spend more on fertilizers Investigation about a dam in Argentina: Río Hondo Dam It was inaugurated in 1967 with the idea of prevent floodings and create energy. It is located in the boundary between Tucuman and Santiago del Estero, and the rivers come from the northwest. It rises over the 39 m, and its capacity covers 1745 hm³. It has problems with contamination because of sediments and since industries discard its waste in there. Done with Mayra Schliemann