Geography HL+SL paper 2 T

Geography HL+SL paper 2 T - c IB DIPLOMA PROGRAMME...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: c IB DIPLOMA PROGRAMME PROGRAMME DU DIPLME DU BI PROGRAMA DEL DIPLOMA DEL BI M05/3/GEOGR/BP2/ENG/TZ0/XX/M+ 27 pages MARKSCHEME May 2005 GEOGRAPHY Higher Level and Standard Level Paper 2 2 M05/3/GEOGR/BP2/ENG/TZ0/XX/M+ This markscheme is confidential and for the exclusive use of examiners in this examination session. It is the property of the International Baccalaureate and must not be reproduced or distributed to any other person without the authorization of IBCA. 3 M05/3/GEOGR/BP2/ENG/TZ0/XX/M+ SECTION A A1. Drainage basins and their management Either (a) Essay Referring to specific case studies at different scales, examine the extent to which there are common issues associated with water utilization. [20 marks] Answers should emphasize the importance of balancing water supply and demand. This issue is common to all scales. Answers could discuss water utilization issues at two or more scales: local, river basin, national (or regional) and international and include a range of issues. Major issues that might be common to all scales include the costs associated with obtaining water, the degree of sustainability, pricing issues connected to the supply of water to particular users, pollution issues, and issues connected with multiple use, such as conflicting demands for water from agriculture, hydro-power, industry, recreation and domestic users. Issues that might apply only to the international scale could include conflicts between countries over shared water resources. Any response that does not make adequate reference to more than one scale may not move beyond band E. Purely descriptive accounts, even if they include different scales, that fail to make any assessment of the extent to which there are common issues associated with water utilization may not move beyond band F. Marks should be allocated according to the markbands. Examiners should be aware that candidates may take a different approach which if appropriate should be fully rewarded. 4 M05/3/GEOGR/BP2/ENG/TZ0/XX/M+ Or (b) Structured question (i) State the name for the drainage pattern of Basin B. [1 mark] The drainage pattern is dendritic [1 mark] . (ii) Define bifurcation ratio . [1 mark] The bifurcation ratio is the ratio between the number of streams of a particular order and the number of streams of the succeeding order [1 mark] . For example, the Basin A drainage system has a bifurcation ratio of 11 (11 first order streams: 1 second order stream). (iii) Explain which of the two basins is more likely to flood at its lowest point. [4 marks] Although both rivers may be likely to flood for a given amount of rainfall, Basin B is more likely to flood [1 mark] , because more of the water in the basin will reach the exit point in a shorter time period, ( i.e. the peak discharge will be higher but relatively short- lived) [1 mark] . In Basin A, the arrival of water at the exit point will be spread over a longer period of time and the peak discharge will be lower [2 marks]...
View Full Document

This note was uploaded on 06/22/2010 for the course COMCC 05123 taught by Professor Mcgee during the Spring '10 term at York County CC.

Page1 / 27

Geography HL+SL paper 2 T - c IB DIPLOMA PROGRAMME...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online