Trans Nzoia East Districts

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312/1 GEOGRAPHY Paper 1 July / August – 2008 Time: 2 ¾ Hours

BONDO – RARIEDA DISTRICTS JOINT EVALUATION TESTS- 2008 Kenya Certificate of Secondary Education (K.C.S.E)

312/1 GEOGRAPHY Paper 1 July / August – 2008 Time: 2 ¾ Hours

INSTRUCTION TO CANDIDATES This paper has two sections; A and B. Answer all the questions in Section A. In Section B, answer question 6 and any other two questions.

This paper consists of 4 printed pages. Candidates should check the question paper to ensure that all the Pages are printed as indicated and no questions are missing.

1. a) Differentiate between latitudes and longitudes. (2 mks) b) State three reasons why the interior of the earth is very hot. (3 mks)

2. a) State two conditions favouring development of fog. (2 mks) b) State three characteristics of inter – tropical convergence zone. (3 mks)

3. a) State two factors that influence soil leaching. (2 mks) b) State three ways in which vegetation protects soil form being eroded. (3 mks)

4. The diagram below represents a river capture use it to answer question (a) and (b)

a) Name the parts marked X and Y. (2 mks) b) State three conditions necessary for a river capture to occur. (3 mks)

5. a) Give two ways through which ice moves. (2 mks) b) State three factors that affect the rate and speed of glacier movement. (3 mks)

SECTION B Answer question 6 and any other two questions in this section.

6. Study the map of Taita Hills (1:50,000) sheet 189/4 provided and answer the following questions. a) (i) What type of map is Taita Hill sheet. (1 mk) (ii) What is the approximate height of a hill at grid square 3926. (1 mk) (iii) Give the six figure grid reference of level crossing on Mwatate – voi all weather road. (2 mks) (iv) What is the general direction of flow of River Pirnga. (1 mk)

© Bondo - Rarieda Examination Committee 2008 Geography312/1 Turn Over 2 b) (i) Calculate the area covered by thicket East of casting 40. (2 mks) (ii) Describe the relief of the area covered by the map. (5 mks) c) (i) Using a vertical scale of 1cm represent 100m, draw a cross-section along northing on it mark and name (3 mks) - Conical hill - River - Thicket (ii) Calculate the vertical exaggeration of your cross-section. (2 mks) d) Students of Weruga School (grid square 2524) carried out a field study on vegetation West of their school. (i) Give three reasons why they constructed a time schedule. (3 mks) (ii) Name two natural vegetation that they identified. (2 mks)

7. Use the diagram below to answer no 7 a) (i)

a) (i) Name the parts marked A, B and C. (3 mks) (ii) Explain three ways in which faulting influence drainage. (6 mks) b) (i) State three characteristics of Grogory Rift Valley. (3 mks) (ii) Using a well – labeled diagrams. Explain how Rift Valley forms through forces of compression. (8 mks) c) (i) Apart from Rift Valley, name two other resultant features of faulting. (2 mks) d) Your class is required to carry out a field study of the Rift Valley. (i) Give three reasons why they need to carry a reconnaissance. (3 mks)

8. a) (i) Name two types of deserts. (2 mks) (ii) State three wind erosion processes. (3 mks) b) With aid of well-labeled diagrams, describe the formation of the following wind erosional features.

9. a) (i) Name two types of waves. (2 mks) (ii) State two factors influencing wave deposition. (2 mks) b) Using a well – labeled diagram, explain how each of the following features is formed. (i) Spit (4 mks) (ii) Blow hole (4 mks) (iii) Tombolo (4 mks) c) Some students carried out a field study on coastal features found along coast of Kenya. (i) List three features formed as a result to coastal emergence they are likely to have studied. (3 mks) (ii) State three methods the students may have used to record their data. (3 mks) (iii) Describe three ways in which features resulting from coastal emergence are of significance to Kenya. (3 mks)

10. a) (i) Differentiate between a well and a spring. (2 mks) (ii) State three different origins of springs. (3 mks) b) Explain three ways in which underground water can be polluted. (6 mks) c) Briefly explain why there are no surface streams in karst regions. (6 mks) d) (i) Name two underground features in a Karst scenery. (2 mks) (ii) Explain three conditions necessary for the formation of artisan well. (6 mks)