Environmental Science Chapter 11 Outline and Study GuideSection 1 Objectives Describe the distribution of Earth’s water resources. Explain why fresh water is one of Earth’s limited resources. Describe the distribution of Earth’s surface water. Describe the relationship between groundwater and surface water in a watershed. Key Terms: surface water, river system, watershed, groundwater, aquifer, porosity, permeability, recharge zone

Section 2 Objectives Identify patterns of global water use. Explain how water is treated so that it can be used for drinking. Identify how water is used in homes, in industry, and in agriculture. Describe how dams and water diversion projects are used to manage freshwater resources. Identify five ways that water can be conserved. Key Terms: potable, pathogen, irrigation, dam, reservoir, desalination

Section 3 Objectives Compare point-source pollution and nonpoint-source pollution. Classify water pollutants by five types. Explain why groundwater pollution is difficult to clean. Describe the major sources of ocean pollution, and explain the effects of pollution on ecosystems. Describe six major laws designed to improve water quality in the United States. Key Terms: water pollution, point-source pollution, nonpoint-source pollution, wastewater, artificial eutrophication, thermal pollution, biomagnification