2012年11月IB地理真题（SL+HL）下载-Paper1
1. Populations in transition
The map shows internal migration flows in China and the Human Development Index (HDI) for each province for 2005.
(a) Describe the pattern of internal migration shown on the map.
(b) Briefly explain three positive socio-economic impacts that this migration could have for the provinces of destination.
(c) Explain why an imbalance in the birth ratio exists in some societies.
2. Disparities in wealth and development
The graphs show the progress made towards Millennium Development Goal 1 (percentage of population living on less than US $ 1 per day).
(a) (i) State which region has met its target.
(ii) Identify the year when this region fi rst met its target.
(b) Suggest two reasons why some regions may not meet their 2015 target.
(c) Explain how increased trade and market access can sometimes help reduce disparities between countries.
3. Patterns in environmental quality and sustainability
The graph shows several different ways of cooling the Earth by geo-engineering (the use of engineering to resolve environmental issues).
(a) Identify the two most cost-effective options shown on the graph.
(b) Explain how deforestation may contribute to global warming.
(c) Explain two possible environmental consequences of global climate change.
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