How does the interdependence of people make their contributions more valuable?

Why was the Mycenaean civilization considered a loose confederacy of city-states? Who first served as Vice President under George Washington and was later elected President? Why is General George A Custer famous? Who did the welding for the world war 2 machines? What sends many protestant English farmers to Ireland to take over land owned by catholic farmers? Why was suleiman important? Which crop was NOT one of the first to be grown in South Carolina? Who were the Mughal rulers after Babur? Where is the NAACP located? What did LeBron James do to help his community? What did Henry parkes say in his famous federation speech? What was the purpose of the bill of rights in the US? Frederick Jackson turner? How many voyages did the pilgrims make? What was so important about sudetenland? How was McCarthyism a threat to constitutional rights? What is the United States ' number one poultry exporter? Can you return library books to any branch in San Mateo? How did telescopes in the middle ages contribute to the general cultural progress of feudal society? What role did phillis wheatley play in the revolution war?