Download free-response questions from past AP Environmental Science exams, along with scoring guidelines, sample responses, and scoring distributions.

Teachers: Explore timing and format for the AP Environmental Science Exam. Review sample questions, scoring guidelines, and sample student responses.

Researchers interested in sustainability developed three new varieties of genetically modified green beans designed to produce higher yields in arid regions. Four plots (A–D) were set up on a floodplain of a river to grow beans. Plots A, B, and C were each planted with seeds of different types of genetically modified strains of green beans.

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 this book. Where calculations are required, clearly show how you arrived at your answer.

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 this book. Where calculations are required, clearly show how you arrived at your answer.

Read the article below and answer the questions that follow. Describe how TWO human activities, other than those that result in anthropogenic climate change, have resulted in a decrease in the amount of freshwater flowing into the Everglades ecosystem.

All of the prior year APES free response questions. Covers 1999 to 2017, and includes all of the questions, scoring guidelines, sample responses, and statistics. A four-page FRQ guide with some great free response tips. Explains how to approach various types of question prompts, including lab design questions.

Struggling with AP Environmental Science FRQs? We explain everything you need to know about the free-response section, with scoring, examples, and key tips.

33 free AP Environmental Science Practice Tests are available. Over 700 AP practice questions to help you with your AP environmental science exam.

AP ® Environmental Science 2021 Free-Response Questions . 2. Pesticides have been utilized for many years to increase food production and control pest populations. Pesticide use can be both beneficial and harmful to humans and other organisms. (a) Pesticide use has advantages, disadvantages, and unintended consequences on human health ...