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The directions emphasize complete-sentence responses, using relevant information and specific examples, and showing calculation work for question 3. 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College Board, Advanced Placement, AP, AP Central, and the acorn logo are registered trademarks [of College Board. Visit College Board on the web: collegeboard.org](of College Board. Visit College Board on the web: collegeboard.org).  \nAP Central is the official online home for [the AP Program: apcentral.collegeboard.org](the AP Program: apcentral.collegeboard.org).  \nENVIRONMENTAL SCIENCE  \nSECTION II  \nTIME – 1 HOUR AND 10 MINUTES  \nDirections:  \nSection II has 3 free-response questions and lasts 1 hour and 10 minutes.  \nIf you are asked to explain, describe, or justify, respond in complete sentences and support your answers with relevant information and/or specific examples. Do not spend time restating the questions or providing more than the number of examples called for.  \nA calculator is available in this application and can be accessed throughout the exam.  \nFor the parts of question 3 where calculations are required, clearly show how you arrived at your answer. You do not need to include units unless indicated. Use your keyboard for the following math expressions and symbols:  \n• Multiplication: use an “x” or asterisk (*) Example: 4 x 5 or 4 * 5  \n• Division and Fractions: use a forward slash ( / ) Example: 17 / 5  \n• Degrees: write “degrees”Example: 25 degrees C  \n• Grouping: use parentheses Example: (2+3) / (7-5)  \nWithin the application, you can enter subscript or superscript, but the following methods are also acceptable:  \n• Subscript: use an underscore ( _ ) Example: CO_2  \n• Superscript: use a caret (^) Example: 10^12  \nYou may pace yourself as you answer the questions in this section, or you may use these optional timing recommendations:  \nThe suggested time is about 22 minutes for each question.  \nYou may use the available paper for scratch work, but credit will only be given for responses entered in this application. Text you enter as an annotation will not be included as part of your answer. For questions that have sub-parts, be sure to label those clearly in your answer.  \nYou can go back and forth between questions in this section until time expires. The clock will turn red when 5 minutes remain—the proctor will not give you any time updates or warnings.  \nNote: This exam was originally administered digitally. It is presented here in a format optimized for teacher and student use in the classroom.  \n© 2025 College Board.  \n[Visit College Board on the web:](Visit College Board on the web: collegeboard.org 2)[ collegeboard.org](Visit College Board on the web: collegeboard.org 2)[ 2](Visit College Board on the web: collegeboard.org 2)  \nAP ENVIRONMENTAL SCIENCE 2025 n FREE-RESPONSE QUESTIONS  \nCommon Terns are a species of shore bird that live along coasts and build nests on beaches above the high-tide line. From 1989 to 2008, researchers monitored a stretch of shoreline along a coast that contained a population of Common Terns. Each year they conducted nest surveys during the breeding season to estimate the number of breeding pairs. They also computed the change in sea level compared to the first year of the study. The graph shows the number of breeding pairs of Common Terns in the study area and relative change in sea level.  \nCommon Tern Breeding Pairs and Increase in Sea Level, 1989–2008  \n© 2025 College Board.  \n[Visit College Board on the web:](Visit College Board on the web: collegeboard.org 3)[ collegeboard.org](Visit College Board on the web: collegeboard.org 3)[ 3](Visit College Board on the web: collegeboard.org 3)  \nAP ENVIRONMENTAL SCIENCE 2025 n FREE-RESPONSE QUESTIONS  \n1. Respond to parts A, B, C, D, E, F, G, H, and I, and all subparts.  \nA. Based on the data in the graph, identify the number of Common Tern breeding pairs in 1995.  \nB. Based on the data in the graph, describe the trend in the number of Common Tern breeding pairs from 1995 to 2008.  \nC. A group of students hypothesized that sea level rise w","cbCaiij29U8XUYKm","https://ap.wps.com/l/cbCaiij29U8XUYKm","pdf",473667,"English","# Section II\n## General Directions\n## Question 1: Common Terns and Sea Level Change\n## Question 2: Wading Birds Study (Graph/Table-Based Parts)\n## Question 3: Wetlands, Ecosystem Services, and Urbanization Impacts","[{\"question\":\"How long is Section II and how many free-response questions are included?\",\"answer\":\"Section II lasts 1 hour and 10 minutes and includes 3 free-response questions.\"},{\"question\":\"What should students do if a question asks for explanation, description, or justification?\",\"answer\":\"Respond in complete sentences and support answers with relevant information and/or specific examples.\"},{\"question\":\"What is required for parts of question 3 that involve calculations?\",\"answer\":\"Clearly show how you arrived at your answer; include units only if indicated.\"}]","AP Environmental Science - Free-Response Questions Set 2 - Section II | PDF",1790683415]