What were the causes of the new imperialism of the nineteenth century and how did it differ from imperial expansion in earlier periods of history?

answer; /// i believe that the correct answer is (divison of labor);

"a shortage of traditional labor created new opportunities in the workplace. a major cause of the internment of japanese americans during world war ii was. racial prejudice. in the early 1940's, the "destroyers-for-military-bases deal" with great britain and the lend-lease act were evidence that the united states."

answer:   the name of this act is known as the:

    " american recovery and reinvestment act of 2009 " .

slavery because it wasnt a role of government