![]() Reasons – later marriages, improved status of women, good health care, reliable food supply, longer life expectancy Stage 5 – CBR slightly decreasing, CDR stableġ971 – Abdel Omran Part of demographic transition model, stage 2 sudden and stark increase in population growth rates brought about by medical innovation in disease or sickness therapy and treatment accounts for the replacement of infectious diseases by chronic diseases over time due to expanded public health and sanitation Reasons - Family planning available, Lower Infant Mortality Rate, Increased mechanization reduces need for workers, Increased standard of living, Changing status of women Stage 4 – CBR and CDR both low. ![]() Reasons CDR falling - Improved health care, Improved Hygiene, Improved sanitation, Improved food production and storage, Improved transport for food, Decreased Infant Mortality Rates Stage 3 CBR starts to fall. Reasons high CBR - Lack of family planning, High Infant Mortality Rate: putting babies in the 'bank', Need for workers in agriculture, Religious beliefs, Children as economic assets, high CDR - High levels of disease, Famine, Lack of clean water and sanitation, Lack of health care, War, Lack of education Stage 2 CBR remains high. Population growth is slow and fluctuating. States that agricultural methods depend on the size of the population in those times of pressure, people will find ways to increase the production of food by increasing workforce, machinery, fertilizers. Said that human population grew geometrically or exponentially, while the food supply meant to feed this population increased arithmetically or linearly, and stated that this was a perfect recipe for a disaster waiting to happen in form of overpopulation Malthus posited a mathematical model of population growth. Tape cards into folder upside down with blank side facing up using the line you drew as a guideĮssential Question: How do models help us understand geographic trends?. ![]() Human Geography Model flipper instructions. ![]() Model Flipper AP Human Geography Population and Migration Political Organization of Space Agriculture, Food Production and Rural Land Use Industrialization and Development Cities and Urban Land Use ![]()
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