Answer:
Among the advantages we can name the fact that across most Europe there are fertile soils, long river systems, the terrain makes traveling easy and therefore more open to trade since there are no physical borders.
However, this same factor turns into a serious disadvantage in times of war. The lack of physical borders makes countries easier to invade, as was probed in the numerous cities captured by the Nazi regime in WWII. Disease transmissions and undesired immigration are also a frequent problem with open borders.
A Historian would look for a primary source (option d. ) - the definition of a primary source is that it was written at the time of the event, and not later (this is the secondary choice).
Answer:He reassured people that the federal government would not prevent citizens from practicing the religion of their choice, or any at all.
Before the age of revolution, religious wars plagued Europe, the Middle East, and North Africa for centuries. Governments were tied to a state supported religion and those who did not follow it were persecuted. In some cases, Protestant killed Catholics and in others, Catholics killed Protestants. Jews were expelled from a number of countries. While persecution varied by time and location it was often merciless. Thousands upon thousands were killed. People of persecuted faiths often had to practice in secret or flee.
Explanation: Hope this helps :) if doesn't please let me know in the comments below thanks :)!!!!!!!!!!!!