How did andrew carnegie become the "richest man in the world? "

World war i brought increased immigration to the united states from which country? germany france italy mexico

The primary goal of the abolitionist movement was to a) immediately emancipate or free all enslaved people. b) allow the gradual release of enslaved people. c) end the importation of enslaved people from africa. d) make mandatory the education of all enslaved people.

Which physical feature minimizes population density in northern africa?