Dams

‼ The things that could be avoided are that larger dans are more expensive, so if they build a smaller or a normal size dans that would be more cheap. There will be less natural environment destruction and the people wouldn't move from their homes since they didn't need so much space. Farmers wouldn't spend so much money on fertilizers, they only spend the necessary.

Well known dam

El Carrizal is located dam in the upper middle course of the Tunuyán River, in the north-central part of the Province of Mendoza, Argentina, upstream of the city of Rivadavia. Next to the lake there are 2 locations El Carrizal on the west bank and Villa San Isidro on the east bank. Its reservoir measures about 15 × 5 km, and the maximum water level is at 785.5 meters above sea level. it is used to regulate the flow of the Tunuyán River, which has glacial sources from the Andes, and to irrigate a very arid region. The water mirror is a tourist destination, where you can take a fishing, windsurfing, sailing, etc. Camps are held on its banks. Over time the reservoir has decreased its retention capacity due to the large accumulation of sediments, which affects the distribution of water in its area of ​​influence.

Uses of water

Uses	Example
DOMESTIC	Indoors and outdoors house puroposes, for taking baths, for cooking, washing clothes, washing teeths, watering the yard
INDUSTRIAL	For factories and for power such as fabricating, washing, cooling or transporting a product or even for industries which produce paper, food or chemicals.
AGRICULTURAL	Is mainly used for irrigating plants but also for pesticides and fertilizers but also for cooling crops

Different lifes

In the video, two different life routines are shown. One of a boy who lives in a water rich country and one who lives in a water-poor country. The girl, who lives in a shanty town, has to travel miles to fill a bottle with water from a river which is very dirty. Hwever, the boy from the water-rich country fills his bottle from a machine and the water is pottable. In the end, the boy travels to where the girl lives, as I think that the boys is aware of  the problems in the country where the girl lives, and while he is there he changes the bottles replacing the dirty with the pottable. I think that all the world needs to do what the boy has done, not only because it is a good action but also because water is needed for life on Earth, for girls like the one in the video to live. The word has to help each other, organizations like the UN, because its not fair for the ones that don´t have availabilty.