Answer:
The North could easily move soldiers and supplies.
Explanation:
Railroads made it so that the North could easily supply its armies with supplies and reinforcement troops.
Answer:
diamonds
Explanation:
In Angola, rebel groups financed a long, violent civil war by selling diamonds on the black market. Other countries, especially in Africa, have been plagued by diamond-related conflicts.
Answer:
January 1967, when three astronauts were killed after their spacecraft caught fire during a launch simulation.
Explanation:
