What aided transportation for the sumerians

What was a consequence of people migrating from the rural areas to the city? a. homesteading b. bans on immigration c. melting pot d. slums

Which term describes the soviet policy the expanded freedom of the press and allowed criticism of the communist party during the cold wara: containment b: perestroikac: detente d: glasnost

Brainliesttt !me : ) how did the world react to liberalization measures from the soviet union?