Containment ship was the preventing to spread communism and brinkmanship was a foreign policy strategy and nuclear diplomacy
The imperialists needed workers to work on the land that was colonized. The locals were not an option because they were often either insubordinate, or they were protected by the law. That's why having slaves to work in those colonies was great, which is why they got them from Africa.
Answer:
spreaded quickly and is highly fatal
Explanation:
<span>The correct answer is A:a growth in the steel industry. In order to build the railroad network, large amounts of steel were needed for the rails on the tracks. Steel was also a key component of the locomotives themselves. Thus, the expansion of this system required more steel to be produced and a growth of this industry.</span>