Answer:
three-fourths of the states must agree to change the constitution
The most surprising thing for me personally was the set up of the trenches, there is a very good system where the front line is the first to attack or be attacked while the others are there as backups. If someone were to get hurt within the first trench, there are easily accessible routes for the soldiers to take to retreat to safety, on the contrary, if the front lines were in need of any reinforcement whatsoever, there is a clear way to travel for the soldiers to get more ammunition or man power.
Answer:
b. History is a dynamic field in which new sources and new perspectives challenge what we thought we knew about the past.
Explanation:
Among the given statements about history, the correct or true one is sentence b. This sentence states that<em> "history is a dynamic field in which new sources and new perspectives challenge what we thought we knew about the past."</em>
History may refer to the information of facts about past events. But there is no fixed nature of history. Rather, it changes with time, where new sources or information may arise and lead to new ways of interpreting or viewing it. Therefore, it is a dynamic field where new developments challenge the old ones, at times changing the perspectives and providing new insights into what we thought or knew about the past.
They were a strength to the Union. They carried soldiers and supplies to the battlefront much quicker, from a few months' march to a week. Having the supplies quicker to the battleground gave the Union the advantage over the Confederates, since the Union could recover much faster from any loss.