Natural Increase, When there are more births than deaths, Natural Decrease, When there are more deaths than births, Fertility Rate, The average number of children born to a woman, Infant Mortality, The number of babies who die before reaching one year of age, Mortality Rate, A measure of the number of deaths in a population, Population Distribution, How people are spread across an area, Population Structure, The different age and sex groups within a population, Ageing Population, A population with a growing percentage of older people, Young Population, A population with a large percentage of children and young people, Dependency, When people rely on others for financial or social support, Dependent Population, People who generally depend on the working population for support, Working-age Population, People who are generally old enough to work, Population Pyramid, A graph showing the age and sex structure of a population, Urbanisation, The growth of towns and cities as more people live in urban areas, Rural-to-Urban Migration, Movement of people from the countryside to towns and cities, Push Factor, A negative reason that encourages someone to leave a place, Pull Factor, A positive reason that attracts someone to a new place, Economic Opportunity, A chance to find work or improve income, Infrastructure, Important systems such as roads, electricity, schools and hospitals, Sanitation, Systems that provide clean water and safely remove waste, Population Pressure, Problems caused when a population puts pressure on resources and services, Carrying Capacity, The number of people an area can support with its available resources, Population Projection, An estimate of what a population may be in the future, Sustainable Development, Improving people's lives without harming the ability of future generations to meet their needs, Demography, The study of populations and how they change

Population 2

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