Nov 2003 Geography SL paper 2

Nov 2003 Geography SL paper 2 - c IB DIPLOMA PROGRAMME...

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GEOGRAPHY STANDARD LEVEL PAPER 2 Friday 14 November 2003 (morning) 1 hour 30 minutes N03/320/S(2)+ c IB DIPLOMA PROGRAMME PROGRAMME DU DIPLÔME DU BI PROGRAMA DEL DIPLOMA DEL BI 883-024 15 pages INSTRUCTIONS TO CANDIDATES y Do not open this examination paper until instructed to do so. y Answer two questions.
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SECTION A Case studies and examples should be used to illustrate answers and where appropriate, they should be specifically located. Include well drawn, large, relevant maps, sketches, tables and diagrams as often as applicable. A1. Drainage basins and their management Either (a) Essay [20 marks] With reference to specific examples, explain how and why river discharge is modified by humans. Describe the consequences of these modifications. (This question continues on the following page) – 2 – N03/320/S(2) 883-024
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(Question A1 continued) Or (b) Structured question The diagram below shows a storm hydrograph. STORM RUNOFF - quickflow processes BASEFLOW - slowflow processes Time (hours) Peak rainfall Peak discharge Lag time Rising limb Recession limb overland flow throughflow baseflow Discharge (m /s) 3 [Source: Bishop and Prosser, Water Resources: Process and Management ] [3 marks] (i) Define the terms: lag time, throughflow and baseflow . [7 marks] (ii) Explain how both human and natural factors can give rise to flash floods. [10 marks] (iii) Discuss ways that humans can alter the form of the storm hydrograph by using flood management techniques. – 3 – N03/320/S(2) 883-024 Turn over
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A2. Coasts and their management Either (a) Essay [20 marks] Explain how long-shore movement of beach material may affect the shape of coastlines and how humans may modify this process. Discuss what consequences these actions might have. Or: (b) Structured question The diagram below shows the location of coastal protection strategies. [Source: Bishop and Prosser, Landform Systems , page 109] [3 marks] (i) For each of the three locations in the diagram identify one strategy that may be used to protect the coastline. [7 marks] (ii) Evaluate the effectiveness of each of the three chosen strategies. [10 marks] (iii) Discuss the view that coastlines should be allowed to evolve naturally. – 4 – N03/320/S(2) 883-024 Cliff-foot strategies Beach management strategies Cliff Beach Cliff-face strategies
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A3. Arid environments and their management Either (a) Essay [20 marks] Despite the lack of water, arid and semi-arid environments have often proved attractive to people. With the aid of examples or case studies, identify the reasons for this attraction and discuss the problems that arise from attempts to overcome the shortage of water. Or (b) Structured question If you choose to answer this question use the diagram in the Resource Booklet. The diagram shows the changes in the area of the Sahara (in km ) from 1980 to 1990 2 and the percentage rainfall variation from the mean for the same period.
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