What is the key concept for this section? Whatpercentage of available freshwater is lost throughinefficient use and other causes in the world and inthe United States? What are two major reasons forthose losses? Describe three major irrigation methodsand list ways to reduce water losses in irrigation. Listfour ways to reduce water waste in industries andhomes and three ways to use less water to removewastes. What is gray water? Describe Sandra Postel’sefforts to educate people about water supply issues.List four ways in which you can reduce your useand waste of water. What is a floodplain? List fourhuman activities that increase the threat of floodingand four ways to reduce our contribution to flooding

What is the key concept for this section? What
percentage of available freshwater is lost through
inefficient use and other causes in the world and in
the United States? What are two major reasons for
those losses? Describe three major irrigation methods
and list ways to reduce water losses in irrigation. List
four ways to reduce water waste in industries and
homes and three ways to use less water to remove
wastes. What is gray water? Describe Sandra Postel’s
efforts to educate people about water supply issues.
List four ways in which you can reduce your use
and waste of water. What is a floodplain? List four
human activities that increase the threat of flooding
and four ways to reduce our contribution to flooding