{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Geography SL+HL Paper 2ms

Geography SL+HL Paper 2ms - IB DIPLOMA PROGRAMME PROGRAMME...

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

View Full Document Right Arrow Icon
MARKSCHEME November 2004 GEOGRAPHY Higher Level and Standard Level Paper 2 N04/GEOGR/BP2/ENG/TZ0/XX/M+ 26 pages IB DIPLOMA PROGRAMME PROGRAMME DU DIPLÔME DU BI PROGRAMA DEL DIPLOMA DEL BI
Image of page 1

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

View Full Document Right Arrow Icon
– 2 – N04/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 authorisation of IBCA.
Image of page 2
– 3 – N04/GEOGR/BP2/ENG/TZ0/XX/M SECTION A A1. Drainage basins and their management Either (a) Essay Referring to at least two river basins, discuss the extent to which management schemes create both benefits and problems. [20 marks] Management of river systems should incorporate strategies, which are multi-purpose, integrated or single purpose. A variety of responses could be expected depending on the choice of examples and approach. Good responses will discuss the ways in which such schemes bring benefits and problems and the choice of examples should reflect this by illustrating such contrasting effects. In the case of benefits these could include – flood control through the construction of dams, barrages, river straightening, deepening, wing dykes, levées and other appropriate strategies. It might be appropriate to discuss the effectiveness of flood control schemes in urban areas like Singapore or to examine the benefits of the central Valley scheme in California. There are a number of problems: large dams can impede the flow of sediment and exacerbate the erosion hazard. In the case of the Mississippi it is possible that engineering works have increased the recurrence intervals of floods and their magnitude. Management in countries like Israel, where there are shortages of water, can have political implications for the surrounding countries. Irrigation schemes, which are often part of integrated projects can cause salinization (Aral Sea). There is a movement in the US to remove large dams and many future projects may focus on eco-management. Rivers may be allowed to follow their own natural regime or soft management practices like afforestation may be employed. Responses that fail to focus on the benefits and problems associated with such schemes may not move beyond band F. Responses which discuss only benefits or problems may not move beyond band E. Where only one river basin is referred to, the response may not be awarded marks beyond band E. The 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.
Image of page 3

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

View Full Document Right Arrow Icon
– 4 – N04/GEOGR/BP2/ENG/TZ0/XX/M Or (b) Structured question (i) Evaluate the accuracy of the information shown in the diagram. [6 marks] In the upper course responses should note that, in agreement with the model, the course is steep and there is a lot of erosion but that the river only flows quickly intermittently.
Image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern