Population , Is the number of people who live in an area country, In rural areas , Few people live in a large area, there is low population density, In urban areas , Lot of people live and work in a small area. There is hight population density, Emigrants, leave their country to live or work, Immigrants, come to your country to live or work, Primary sector , it takes natural materials from nature., secondary sector , it makes products from natural materials., terciary sector , it provides services. It help or protects us.

Population

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