primary economic activities: direct taking of a resource (growing, fishing, mining)
secondary economic activities: making/processing a primary resource into something
tertiary economic activities: service sector
quaternary economic activities: information, knowledge base service sector
quinary economic activities: high level decision making sector
secondary economic activities: making/processing a primary resource into something
tertiary economic activities: service sector
quaternary economic activities: information, knowledge base service sector
quinary economic activities: high level decision making sector