Where did the city-states of sumer develop

Black death spread because of what problem in medieval europe? which one is it i need the answer quick . a- overcrowded cities b-too many farm animals c-not enough qualified doctors d-all of the above

In the vals framework, self-expression-motivated consumers who have fewer resources and express themselves and experience the world by working on it are referred to as experiencers thinkers strivers believers makers

How does the principle of federalism affect the u.s. government? a. it guarantees that the united states will always be a representative democracy b. it ensures that the state governments have greater authority that the federal government c. it creates both separate and overlapping powers for the federal and state governments d.it divides the federal and state governments into three branches