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Answer:
a. an aristrocacy and a democracy
Explanation:
Aristocracy refers to the rule by elite citizens. Democracy is a form of government in which all eligible citizens have an equal say on their rights
The fix the machine invention
Answer:
They built them on hills.
Explanation:
Of course, they did this to create a natural defense from the attack of foreign invaders. For example, the city of Rome itself was built on seven famous hills. Of course, through time they tried to fortify them as much as possible, but the main defense laid on the physical location of those cities.
Answer:
Massachusetts
Explanation:
Massachusetts was the state that argued that the slaves should be allowed to join the Union army. This was also significant for the slaves as it is believed in some circles that it was the end to slavery which led to the war. Also, the 54th Massachusetts infantry unit did induct slaves as soldiers in 1863. Hence, Massachusetts is the right answer to this.