population - all the people who live in a particular town, area, or country., birth rate - The number of babies born each year for every 1,000 people in a population., death rate - The number of deaths each year per 1,000 people in a population., population density - The average number of people living in a specific area (usually per square mile or km)., urbanization - The growth of cities as more people move from rural areas to urban areas., demography - The study of populations, including births, deaths, and migrations, fertility rate - The average number of children born to a women during her lifetime., life expectancy - The average number of years a person is expected to live in a particular country., child mortality rate - The number of children who die before the age of 5 for every 1000 live births in population., population growth rate - How quickly a population is increasing or decreasing over time., carrying capacity - The largest number of people that an area's environment and resources can support., population pyramid - A graphical representation that shows the distribution of various age groups in a population, typically divided by gender., population distribution - The way people are spread out across an area or the Earth’s surface.,

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快閃記憶體卡是一個開放式範本。它不會為排行榜生成分數。

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