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Water pollution

APES Chapter 20

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Chapter 20 WATER POLLUTION Multiple Choice Questions CORE CASE STUDY Lake Washington, near Seattle, was degraded by the growth of which of the following? coliform bacteria protozoans snails aquatic plants cyanobacteria Level: Moderate Answer: E The degradation of Lake Washington resulted from the introduction by sewage treatment plants of which of the following? phosphorus nitrogen oxygen chlorine fecal material Level: Moderate Answer: A When researchers studying Lake Washington got no action from treatment plant managers, they did which of the following? went on to something new went to the Washington State legislature for help went to the EPA for help educated the public wrote more scientific articles Level: Moderate Answer: D
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