The TOEFL iBT replaces the TOEFL computer-based test (CBT) and the paper-and-pencil (PBTJ version of the test. Information comparing scores from TOEFL iBT to TOEFL CBT and TOEFL PBT is available on pages 350 to 359. | i II II Answers and Explanations 1. This is a Vocabulary question. The word being tested is threatened. It is highlighted in the passage. To threaten means to speak or act as if you will cause harm to someone or something. The object of the threat is in danger of being hurt so the correct answer is choice 2 endangered. 2. This is a Factual Information question asking for specific information that can be found in paragraph 3. The correct answer is choice 2 reduced water absorption. The paragraph explicitly states that the reduction of vegetation greatly reduces water absorption. Choice 4 reduced water runoff explicitly contradicts the paragraph so it is incorrect. The spaces in the soil are mentioned in another context the paragraph does not say that they increase so choice 3 is incorrect. The paragraph does not mention choice 1. 3. O This is a Vocabulary question. The word being tested is delicate. It is highlighted in the passage. The correct answer is choice 1 fragile meaning easily broken. Delicate has the same meaning as fragile. 4. Q This is a Factual Information question asking for specific information that can be found in paragraph 5. The correct answer is choice 1 border areas have difficulty adjusting to stresses created by settlement. The paragraph says that expanding populations or settlement subject border areas to pressures or stress that the land may not be able to respond to. Choice 2 is incorrect because the paragraph does not discuss fertility after desertification. Choice 3 is also incorrect because irrigation is not mentioned here. The paragraph mentions increasing populations but not the difficulty of attracting populations so choice 4 is incorrect. 5. 0 This is a Vocabulary question. The word being tested is progressively. It is highlighted in the passage. The correct answer is choice 4 increasingly. Progressively as it is used here means more and more of something means that it is increasing. 6. This is a Factual Information question asking .