Water is one of the most important elements in humans’ life. We cannot live without it. The Earth is composed of 70% water, and our body weight is made up of 70% water. It seems human beings have a great amount of water, but there are some problems of that. The largest amount of water is in the oceans that over 97% of all water. Antarctica and glaciers hold a little less than 2% of the water. It means we can only use 1% of water, which is very small amount. Therefore, the water resources have a very close related to human beings.
Andrusiak, J. (2002). Irrigation along the Oldman River. Retrieved January 11, 2005, from the University of Lethbridge, Welcome to home page for the Oldman River Web site: http://www.uleth.ca/vft/Oldman_River/Intro.html
The City of Toronto (2003, July). Toronto’s water pollution solution… going for the flow. City of Toronto. Retrieved February 3, 2005 from http://www.city.toronto.on.ca/water/protecting_quality/wwfmmp/
Deadly E.coli in Ontario (2000, May 31). Retrieved January 11, 2005, from Canada Online Web site: http://canadaonline.about.com/library/weekly/aa052700a.htm
Government of Alberta (2004). Irrigation general regulation, Alta. Reg. 78/2000. [online version] Retrieved February 9, 2005 from the Canadian Legal Information Institute Web site: http://www.canlii.org/ab/laws/regu/2000r.78/20041104/whole.html
Gustafson, D. I. (1993). Pesticides in drinking water. New