primary sector, farming, mining jobs, secondary sector, factories and Construction, tertiary sector, jobs like banking, teaching, quaternary sector, finance, IT, technology, population pyramid, age and gender structure of population, dependency ratio, proportion of people young and old who depend on working class

development models, population

tarafından

Skor Tablosu

Görsel stil

Seçenekler

Şablonu değiştir

Otomatik olarak kaydedilen geri yüklensin mi: ?