30. Choose the correct answer. McKenzie studied . seafloor spreading continental drift magnetic striping convection currents

How did the union blockade of the southern coast affect the confederacy? it forced the confederacy to build new railroads. it contributed to shortages of weapons and food. it encouraged europe to trade with the south. it halted all trade, leaving the south without supplies.

In which case did the supreme court's decision allow schools to use forced bussing to ensure integration of its schools?

N1947, the united nations create a country