What did alfred wegener theory of continental drift suggest

What was the focus of the stanford study-pls

Who ever answers first gets ! trade in the vedic age led to a.the rise of kingdoms because of the importance of controlling land and long-distance travel routes b.the building of an extensive system of roads because of the difficult terrain c.the creation of a large banking class because of the need to exchange different currencies d.the development of a centralized government that controlled the economic decisions of its people

Which of the following is one of the challenges that president nixon faced when he first entered office? finding an end to the vietnam war is the answer