What natural boundary helps form the border between the united states and mexico

Two of these describe "federalism." (choose two answers) select one or more: a. the national government absolutely controls all state governments. b. power is shared by the national and state governments. c. state governments exercise absolute power over the national government. d. it is a compromise meant to eliminate the disadvantages of a "unitary" and a "confederate" system.

What do the differing approaches of booker t. washington and w. e.b du bois suggest about their views of american society?

How has germany developed through the 19th centuryexplain in about 100 words the sequence of events that led to the nation’s unification. btw if u use any sources (aka websites) lemme kno