Extreme pro-slavery elements objected to it because it provided a precedent by which Congress had power to regulate slavery. Abolitionists opposed it because it allowed slavery to continue to spread in some of the areas.
Answer:
a.he claimed that 205 communists worked in the US State Department
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Explanation:
Answer: A system of government that is centralized and dictatorial that requires complete subservience or willingness to the state
Explanation:
Railroad technologies
City planners saw a great promise in railroad technologies in resolving the problems facing public transports. As a result, railway transport was immensely integrated into several city public transport systems.