People in a changing world

agriculture American areas Asia basic beliefs business cycles centers Check-ups China ciety cities civilization climate coal coastal colonial common communist crops culture democracy democratic deposits earth economic development economic system effect established European example farming fascism force forests geographic groups Hopi hydroelectric ideas important increased India Indian individual Industrial Revolution influence islands Japan labor land Lapps leaders less developed nations living major ment metal methods Middle East minerals modern mountains needs nineteenth century nomic North Northern ocean organization physical environment plains policies political parties political systems population problems production region RESEARCH FOR BETTER result REVIEW AND RESEARCH river Russian scientists social society soil sources South South America Southern Soviet Union steel Subsaharan Africa subsistence economy tion totalitarian trade traditional Trobriand Islanders twentieth century United West Western Europe workers Yugoslavia