the change in the size of population of territory
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The change in the population size of a country during a specific period of time is called Population growth. The growth of population in a region depends upon fertility, mortality and migration. ... The term migration refers to the movement of people from one area to the other or from one country to another
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Population growth
The change in the population size of a country during a specific period of time is called Population growth. The growth of population in a region depends upon fertility, mortality and migration. Fertility or the birth rate is measured in terms of total number of live births per thousand population per year. Mortality or the death rate is measured in terms of total number of deaths per thousand population per year and the difference between two rates is called the natural growth rate. The term migration refers to the movement of people from one area to the other or from one country to another. The rate of migration affects the growth of population of a region by increasing or decreasing the number of people living there.