http://encarta.msn.com/text_761556865___18/Human_Nutrition.html
This is a web that talks about how the human has to have a lot of water in and consume it too.

http://www.windows.ucar.edu/tour/link=/earth/Water/overview.html
This web says that the earth is made out water and without water there would not be any life or anything that would be alive. If the water goes away and there was any more, there would be any way that we will survive.