How many countries in North America have a border with South America?

The nye committee report created the impression that america's entry into world war i was influenced by

Some historians argue that the changes brought by industrialization caused americans to beomce a more secular people. to what extent do you agree or disagree, and why? use evidence from chapter 18 to make your case.

Many blacks moved from the south to northern cities during world war li looking for employment. after the war, a number of them lost their jobs. why did this happen?