2018年5月IB地理真题（SL+HL）下载-Paper1
1. Populations in transition
The graph shows the actual dependency ratios for 2010 and the predicted dependency ratios for 2050 for a selection of countries.
(a) Outline how a country’s dependency ratio is calculated.
(b) Describe two predicted regional trends shown on the graph.
(c) Suggest one reason for the predicted change in Nigeria’s dependency ratio.
(d) Suggest one positive and two negative socio-economic impacts of an ageing population for one named country.
2. Disparities in wealth and development
The map shows foreign debt as a percentage of gross national income (GNI) for a selection of countries in the Americas in 2015.
(a) Briefly outline what is meant by:
(i) gross national income (GNI);
(ii) foreign debt.
(b) Identify which country on the map is most in need of debt relief and briefly justify your choice.
(c) Explain, using examples, two ways in which increased trade may help reduce economic disparities between countries.
3. Patterns in environmental quality and sustainability
The graph shows one estimate of the long-term impact of global climate change on agricultural production.
(a) Describe how the estimated impact of climate change on agricultural production varies with latitude.
(b) Suggest two reasons why global climate change may lead to an increase in agricultural production in some places.
(c) Distinguish between physical water scarcity and economic water scarcity.
2018年5月IB地理真题余下省略！
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