Discuss which are naturally occuring and which are the result of human action on the environment. Divide students into cooperative groups. Huge tracts of forest are being cleared for agricultural development. The plant is now generating electric power for use within the country and for export. With this in place, Paraguay hopes to begin developing more industry.
Some rural areas have problems with untreated sewage.
Have them defend their answers. Assign each team one or more of types of pollution to research. They are to gather information about laws in your state protecting water quality and about methods used locally to combat water pollution and provide safe drinking water. Have them list the ten types in order, easiest to control to hardest and defend their choices. Do an Internet search using Web Crawler, Yahoo, Gopher or Lycos on water pollution.