5.what problem did frederick jackson turner's frontier thesis

expose?

a. america's unique development could not continue in

the absence of a frontier.

b. intervention in international affairs would cause

domestic interests to suffer.

c. the u. s. navy needed to be modernized.

d. the purchase of alaska was a bad idea.

A. America's unique development could not continue in the absence of a frontier.

Explanation:

He stressed the process—the moving frontier line—and the impact it had on pioneers going through the process. He also stressed results, especially that American democracy was the primary result, along with egalitarianism, a lack of interest in high culture, and violence.

anti-semitism hope this !

it granted civil rights to african americans.