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Module 8 Population Composition 131 a. Identify one country where the median age is below 25. b. Identify a world region where the median age is above 40 years old. c. Describe one reason why the median age of population is rising in many countries. d. Describe how immigration may affect the median age of a country. e. Explain one economic impact of an aging population. f. Explain one economic impact of a young population on a country. g. Compare the political challenges that countries with older and younger populations may face. EXAMPLE SCORING GUIDELINES a. Answers will vary, but mostly countries in sub-Saharan Africa, Afghanistan, Bolivia and%u00a0Paraguay, Yemen, and Papua New Guinea b. Canada, Europe, Russia, and Japan c. People are living longer (death rate has decreased); women are in the workforce and having fewer children; more access to contraceptives has kept birth rates low. d. Immigration may lower a country%u2019s median age because immigrants tend to be young. e. Workers will need to support a larger number of elderly people. More of the government%u2019s budget will need to be allocated for medical services and retirement costs and facilities for the elderly. f. More resources will need to be spent on education and health care for children and adolescents. There will be greater pressure to find employment for the growing population. g. An aging population may require governments to spend more resources on the elderly and resort to immigration to solve labor shortage problems, both of which may be controversial politically. Governments facing a more youthful population will have the pressure of providing education and employment to its growing population. Not meeting these needs could lead to political instability. YOUR TURN Use the following map to answer the prompts based on dependency ratios. (parts a%u2013g are worth 1 point each)Tropic of CancerArctic CircleTropic of CapricornEquatorPACIFICOCEANPACIFICOCEANATLANTICOCEANATLANTICOCEANINDIANOCEAN20%u00b0N20%u00b0S40%u00b0S40%u00b0N60%u00b0N80%u00b0N0%u00b020%u00b0N20%u00b0S40%u00b0S40%u00b0N60%u00b0N80%u00b0N0%u00b0160%u00b0W 100%u00b0W 80%u00b0W 60%u00b0W 40%u00b0W 20%u00b0W 0%u00b0 20%u00b0E 40%u00b0E 60%u00b0E 80%u00b0E 100%u00b0E 120%u00b0E 140%u00b0E 160%u00b0E 180%u00b0Tropic of CancerArctic CircleTropic of CapricornEquator0 2000 4000 miles0 2000 4000 km20%u00b0S40%u00b0S160%u00b0W 100%u00b0WAge dependency, 2018High child dependencyModerate child dependencyDouble dependencyHigh elderly dependencyLow overall dependency a. Define dependency ratio. b. Identify one world region on the image with a high child dependency ratio. c. Identify one region on the image with a high elderly dependency ratio. d. Explain one impact on society of a high child dependency ratio. e. Explain one impact on society of a high elderly dependency ratio. f. Explain one demographic reason for a low child dependency ratio. g. Explain one demographic reason for a low elderly dependency ratio. %u00a9 Bedford, Freeman & Worth Publishers. For review purposes only. Do not distribute.