2020年11月IB地理真题（SL+HL）下载-Paper1
1. Refer to the maps on page 2 of the accompanying resource booklet.
The maps show the growth of algae in a freshwater lake where eutrophication is occurring.
Algae growth is caused by high levels of nutrients.
(a) Identify two changes between 2003 and 2011 along the southern shore of the lake between Sandusky and Cleveland.
(b) Outline one environmental problem caused by eutrophication.
(c) Explain one human reason and one physical reason why some areas of a freshwater lake such as this experience high levels of eutrophication.
Answer either part (a) or part (b).
Either
2. (a) Examine the role of local communities in the management of water resources.
Or
2. (b) Examine the ways in which different physical factors can affect the characteristics of hydrographs.
3. Refer to the map on page 3 of the accompanying resource booklet.
The map shows land use changes that led to the loss of mangrove swamps in selected Southeast Asian countries in 2012.
(a) (i) Identify the dominant land use that is replacing mangrove swamps on island A.
(ii) Estimate the percentage of mangrove swamp loss caused by urban development B.
(b) Outline one physical factor necessary for the formation of a mangrove swamp.
(c) Explain two environmental consequences of the loss of mangrove swamps in coastal areas such as those shown on the map.
Answer either part (a) or part (b).
Either
4. (a) Examine the role of sea level changes in the formation of relict cliffs and raised beaches.
Or
4. (b) Examine the roles of different stakeholders in the management of one coastal margin affected by erosion or flooding.
2020年11月IB地理真题余下省略！
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