Q 11.2 2. Why is groundwater considered to be a nonrenewable resource in many regions? 11.4 2. Compare point and non-point source pollution and give examples of each for the city of Cleveland, Ohio, located on the banks of Lake Erie. 11.5 1. What is the function of a dam and what are its long-term consequences? 11.7 1. You are the mayor of a city facing prolonged and severe water shortages You have no surface waters available to you, with the exception of a reservoir north of the city. Develop a long-term plan to ensure that your city does not run out of water. 11.8 2. Explain how the Endangered Species Act has affected water use in many river systems.