Choose a health impact likely to result from ozone depletion.
Cataracts
Thermal stress
Malaria
Coronary heart disease
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Exam code: 7037
Choose a health impact likely to result from ozone depletion.
Cataracts
Thermal stress
Malaria
Coronary heart disease
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Choose the example from the list below that supports a Malthusian perspective on population growth.
The Chinese government launched the one-child policy in 1979. Families were fined if they broke the rules. This policy resulted in many families becoming bankrupt but it prevented over 400 million births.
The development of miracle rice crops in the 1960s such as IR8 in India tripled the yields of rice. This reduced the number of famines despite an increasing population growth rate of over 2% during the 1960s and 1970s.
The Water Project in Uganda has provided borehole wells and hand pumps to many villages. The use of appropriate technology means that the villages can maintain the wells themselves. As a result, death rates from diseases such as typhoid have fallen.
In the 1980s there were a series of famines in Ethiopia. These famines occurred as a result of failed harvests due to drought and population pressure. There was also a civil war which prevented the distribution of food aid.
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Outline how the global population is projected to change during this century.
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Outline the impacts of ozone depletion.
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Which of the following is most likely to be a health impact of a changing climate?
A fall in cases of heatstroke as people adapt to cooler conditions.
A reduction in the global range of mosquito-borne diseases.
Fewer deaths from extreme weather events such as floods and storms.
The spread of vector-borne diseases such as malaria into new areas.
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To what extent is climate the most important physical factor impacting global population distribution?
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Study Figure 1, which shows the population of five world regions in 2020 and the projected population in 2100, in billions.
Figure 1: Population by world region, 2020 and projected 2100 (billions)
Region | 2020 | 2100 (projected) |
|---|---|---|
Africa | 1.3 | 3.9 |
Asia | 4.6 | 4.7 |
Europe | 0.75 | 0.63 |
Latin America | 0.65 | 0.68 |
North America | 0.37 | 0.49 |
Analyse the data shown in Figure 1.
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Assess the extent to which a changing climate threatens human health.
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To what extent is the global population likely to stabilise during this century?
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Assess the impacts of ozone depletion on people and the environment.
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‘As more and more countries exceed their carrying capacity, soil problems will inevitably increase and there is very little that can be done to mitigate this.’
To what extent do you agree with this statement?
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Assess the extent to which population growth poses a threat to the natural environment.
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To what extent is global environmental change likely to limit future population growth?
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