Explain why freshwater is considered a limited resource.

Breifly describe the drinking water treatment process (main steps/point of the steps).

List 3 things you can do to conserve water.

Explain why point-source pollution is easier to control than nonpoint-source pollution.

Describe why it is so difficult to clean up groundwater pollution.

Describe the source of most ocean pollution. Is it point or nonpoint-source pollution?