How do scientist predict population growth

Who established the peoples republic of china in 1949

What was the midwest states often called because they were located in the center of the nation

Which of the following did the founding fathers see as a benefit of the federal structure (federalism) of government? a.) all power is concentrated in the national government. b.) the power is divided between national and state governments. c.) all the power is concentrated in the state and local governments. d.) the power is divided between the people and the government