12. What were some of the things people did to survive as they migrated north?

the answer is migration

answer; (d) i believe that the correct answer is americans finally ran out of ammunition;

straight down to hell mate

answer is b.

  it is always the best policy to have good communication and good relations between individuals and, specially, between leaders of the countries. for this purpose, among others, there is a common place, the united nations, where the representants can present his and learn about the other country's policies.