How do stars create black holes in outer space?

How did justinian attempt to revive the “glory of rome”?

Why was the agricultural revolution more successful in england than in the rest of europe?

Why were americans concerned about the future of north and south america? check all of the boxes that apply. they worried that european countries would take over independent countries in latin america. they thought that european nations could threaten democracy in the united states. they believed that europe would never again return to the americas.