What was the main failure of the articles of confederation that eventually led to the us constitution?

Which of these statements describes a long-term impact of european imperialism in africa? a. african countries joined together to present a united front against imperialism. b. europeans paid african countries after colonizing them, offering these new countries a fresh start. c. european powers drew the current borders, splitting ethnic groups among modern countries. d. africans became more loyal to their countries than to their ethnic groups.

Which of these is an edge city? boston, ma chicago, il irvine, ca detroit, mi

Explain how stock market speculation contributed to the great depression.