What factors contributed to the united states becoming a world leader? a. is wrong why is a. wrong?

The united states suffering no war damage and having a strong economy should be your answer.

It developed as a reaction to the impact of european colonialism in africa on peoples of african descent. in the  mid-20th century, activists in africa adopted pan-africanism as a rallying cry for independence from colonial rule. some african pan-africanists sought to unite the continent as one independenthope it was useful