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Population Pyramids
Population and Migration Chapter 2 - Population Pyramids
Question | Answer |
---|---|
Demography | is concerned with population growth and the characteristics of the population |
Important Characteristics | age and gender |
Sex Ratio | the number of males compared to females in a population |
Population Pyramid | analyzing it is one of the easiest ways to identify a population's sex ratio |
Population Pyramids | chart populations on a graph |
Population Pyramid Graphs | breaks down the population based on both gender and age and can be analyzed in terms of the DMT |
Population Pyramids | good ways to analyze population projections |
Population Projections | use demographic data to determine future population |
Population Projections | only work if the governmental structure and cultural customs remain the same |
Population Pyramids of Less Developed Countries | have a wide base because the majority of the population is under the age of 15. |
Dependancy Ratio | says that those ages 0-14 and over 65 depend on the workforce for support |
Demographic Momentum | is a continued population increase as a result of a large segment of the population being young |
Demographic Momentum | countries in stage two have it |
Negative Growth | when the country begins to lose population (stage 4) |
Population Pyramids | do not only have to be used on a national scale, but can be used to describe cities or even neighborhoods |
Information Gathered | allows governments to develop policies and allocate resources to meet the current and future needs of the population |