2023 NJC J1 MYE Seminar Test 1 Ans Key

Humanities Department H2 Geography (9173) Name: _________________________ Class: ______________ Duration: 1 h 30 mins Senior High 1 H2 Geography Seminar Test 1 – SUGGESTED MARKING GUIDE Section A Cluster 2: Tropical Environments 1 Resource 1 shows land use changes within the Enkare Narok drainage basin in Narok county in Southwest Kenya from 1985 to 2019. Resource 2 shows an aerial view of the Enkare Narok River within the E nkare Narok drainage basin. Resource 3 shows a news excerpt on Naroosura River’s flow. Resource 4 shows flood risk map of Kenya. (a) Describe the changes in land use within Enkare Narok drainage basin shown in Resource 1. [4] Award 1 mark for each description of the changes in land use, up to a maximum of 4 marks. Award a maximum of 1 additional mark for further development of each description, where applicable. Possible responses include: • [General] Forest and rangeland land uses were dominant in 1985 but in 2019, agriculture became the dominant land use in Enkare Narok drainage basin [1 mark]. o In 1985, forest and rangeland accounted for 98.1% of land use whereas in 2019, agriculture made up more than half (55.4%) of the land use [1 additional mark] • [Specifics] Agriculture experienced the largest increase in terms of land use, from 0% in 1985 to 55.4% in 2019 [1 mark] • [Specifics] On the other hand, forest saw the largest decrease in terms of land use, from 46.5% in 1985 to only 6.2% in 2019 [1 mark] • [Specifics] Built up area made up 1.9% of the land use in northwest region of the drainage basin. It then spread north and eastwards to make up 12.5% of the drainage basin in 2019 [1 mark] • [Anomaly] Agriculture and built up areas saw increase in land uses from 1985 to 2000 and then from 2000 to 2019 w hile forest saw a decrease over the 2 time periods. However, rangeland saw an increase [1 mark] o of 2.5% from 1985 to 2000 then a decrease of 27.2% from 2000 to 2019 [1 additional mark] AO2

Humanities Department H2 Geography (9173) (b) With reference to Resource 1, explain how land use changes may affect water storages and pathways in the Enkare Narok drainage basin. [6] Award 1 mark for each explanation of how land use changes may affect water storages and pathways in the Enkare Narok drainage basin, to a maximum of 6 marks. Award a maximum of 1 additional mark for further development of each explanation, where applicable. Award a maximum of 3 marks for explanation of either impact on pathways or water storages only. Possible responses include: Impact on pathways: • The decrease in forest and rangeland land uses and increase in built up areas and agriculture would lead t o the reduction in density of vegetation within the drainage basin and cause less infiltration and percolation, but more overland flow [1 mark]. o This