2016年11月IB地理真题（SL+HL）下载-Paper2
1. The graph shows the number of floods per decade for a river.
(a) (i) Describe the changes in flood frequency shown on the graph.
(ii) Estimate how many more floods occurred in the 1990s than in the 1930s.
(b) Suggest one physical reason and one human reason why the risk of a river flooding can change over time.
(c) To what extent are floodplain landforms the result of river deposition?
2. If you choose to answer this question refer to the map on page 2 in the resources booklet.
The map shows the distribution of wetland areas in the Americas that have been given Ramsar status. The Ramsar Convention is the convention on wetlands of international importance.
(a) (i) Define the term wetland area.
(ii) Describe the pattern of wetland areas shown on the map.
(b) (i) State one component of agricultural run-off that contributes to the eutrophication of lakes and wetlands.
(ii) Suggest two impacts of eutrophication that can have adverse effects for people.
(c) “The drainage basin is an open system with inputs, outputs, transfers and stores.”Discuss how this knowledge helps people to prevent flooding.
3. The diagram shows four landforms (A, B, C, D) associated with a cliff.
(a) (i) Identify two of the landforms shown in the diagram.
(ii) Outline how wave action could lead to the collapse of the cliff.
(b) Explain three factors favouring the growth of coral reefs.
(c) Examine the environmental and economic impacts of the pollution of oceans by oil.
2016年11月IB地理真题余下省略！
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