Chapter 14 Review

chapter 14Review

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In this chapter, we learned about the many sources of water pollution and their effects on humans and the environment. One prominent source of water pollution is the wastewater produced by humans and livestock. Wastewater can bring excessive nutrients to water bodies and be a source of disease-carrying organisms. Fortunately, a number of technologies exist to treat wastewater including septic tanks, sewage treatment facilities, and manure lagoons. Water pollution can also occur when heavy metals, pesticides, pharmaceuticals, and acids find their way into groundwater or surface waters. As we continue to extract energy from the ground, we face the risk of pollution from the pipelines and ships that carry petroleum products. Fortunately, new technologies present options for cleaning up some of the petroleum products that have leaked or spilled. We also face pollution risks from nonchemical sources including solid waste, sediments, heat, and noise.

Key Terms

Question

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Learning Objectives Revisited

Module 41 Wastewater from Humans and Livestock

Module 42 Heavy Metals and Other Chemicals

Module 43 Oil Pollution

Module 44 Nonchemical Water Pollution

Module 45 Water Pollution Laws