What is ptolemy's theory that the earth is the center of the universe called?

And other public buildings played a major role in the daily lives of the people of ancient greece. a. arenas b. courthouse c. temples d. malls

The enforcement clause of the fourteenth amendment states what congress had the authority to a. grant citizenship to people b. change the constitution c. enforce only the bill of rights d. make laws to apply the amendment

Which of the following was probably the most difficult challenge facing construction of the railroad?