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1、 AP Environmental Science2004 Free-Response Questions The College Board is a not-for-profit membership association whose mission is to connect students to college success and opportunity. Founded in 1900, the association is composed of more than 4,500 schools, colleges, universities, and other educa
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7、or in part, in limited quantities, for face-to-face teaching purposes but may not mass distribute the materials, electronically or otherwise. This permission does not apply to any third-party copyrights contained herein. These materials and any copies made of them may not be resold, and the copyrigh
8、t notices must be retained as they appear here. 2004 AP ENVIRONMENTAL SCIENCE FREE-RESPONSE QUESTIONS Copyright 2004 by College Entrance Examination Board. All rights reserved. Visit (for AP professionals) and (for AP students and parents). GO ON TO THE NEXT PAGE. 2 ENVIRONMENTAL SCIENCE SECTION I
9、I Time90 minutes 4 Questions Directions: Answer all four questions, which are weighted equally; the suggested time is about 22 minutes for answering each question. Write all your answers on the pages following the questions in the pink booklet. Where calculations are required, clearly show how you a
10、rrived at your answer. Where explanation or discussion is required, support your answers with relevant information and/or specific examples. 1. Read the editorial below and answer the questions that follow. (a) On the basis of the article above, indicate one human activity that releases mercury into
11、 the environment. Describe how mercury is transported from that source and enters aquatic systems, often hundreds of miles away. (b) Describe TWO ways that the amount of mercury released into the environment from the source in part (a) could be reduced. (c) Explain why there are greater health risks
12、 associated with eating large predatory fish, such as tuna and sea bass, than from eating small nonpredatory fish. (d) Identify a toxic metal other than mercury that has a negative impact on human health and describe how it is introduced into the environment. Describe an acute sublethal effect on hu
13、mans that results from exposure to this metal. 2004 AP ENVIRONMENTAL SCIENCE FREE-RESPONSE QUESTIONS Copyright 2004 by College Entrance Examination Board. All rights reserved. Visit (for AP professionals) and (for AP students and parents). GO ON TO THE NEXT PAGE. 3 2. West Fremont is a community c
14、onsisting of 3,000 homes. A small coal-burning power plant currently supplies electricity for the town. The capacity of the power plant is 12 megawatts (MW) and the average household consumes 8,000 kilowatt hours (kWh) of electrical energy each year. The price paid to the electric utility by West Fr
15、emont residents for this energy is $0.10 per kWh. The town leaders are considering a plan, the West Fremont Wind Project (WFWP), to generate their own electricity using 10 wind turbines that would be located on the wooded ridges surrounding the town. Each wind turbine would have a capacity of 1.2 MW and each would cost the town $3 million to purchase, finance, and operate for 25 years. (a) Assuming that the existing power plant can operate at full capacity for 8,000 hrs/yr, how many kWh of electricity can be produced by the plant in a year? (b) At the current
