Building the Berlin Wall, preventing trains from traveling through east Germany. Stopping cars from getting through.
D.,
A, B, and C have the solution of the system of Equations (2,1) But D has a solution of (1,2).
pollution, public education, harder to get a job
Answer:
D.educating peasants
Explanation:
the early Middle Ages relied on the churxh for educating peasants
D. A transfer of foods between Europe and the Americas
