Hello could someone please help me?

Which would be good historical evidence when studying manifest destiny?

What was the most explosive issue facing the united states prior to the start of the civil war?

Which of the following was a major outcome of european imperialism in africa after the industrial revolution? o a. the area around the suez canal experienced decades of military conflict o b. africans in the belgian congo suffered forced labor and oppression o c. the discovery of rich matural resources led to african economic prosperity. o d. europeans brought disease to central africa, killing thousands.