Developed: low student to teacher ratio, high percent urban, low percent in agriculture, tertiary economic activity predominant, low maternal mortality rate, high percent over age 65, connected networks of infrastructure, mechanized farming, high GDP per capita, low infant mortality, high life expectancy, high per capita energy use, low fertility rate, Developing: high fertility rate, limited infrastructure, low life expectancy, high maternal mortality rate, high infant mortality, low percent urban, primary economic activity predominant, high percent in agriculture, high student to teacher ratio, secondary economic activity predominant, low GDP per capita, low per capita energy use , high percent under age 15, mainly manual labor in agriculture,

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