Answer:
The infamous Salem witch trials began during the spring of 1692, after a group of young girls in Salem Village, Massachusetts, claimed to be possessed by the devil and accused several local women of witchcraft.
While you didn't really provide the "following" as the comment above me states, in general, the advantage of secondary sources of primary ones is that they perhaps provide a more objective or even just a broader view on a certain topic. While a primary source of the American civil war would be a letter written by a soldier, a secondary source would be a book that describes more letters taken together and discusses possible information regarding them.
In creating a new U.S. government, it was "A. The Virginia Plan" that proposed that the elected members of lower house would select the members of the upper house, since this would have favored the larger states.
Answer: The Automobile industry
Explanation:
In the 1920s, the Automobile industry had been revolutionized in no small part by Henry Ford which led to cars becoming so popular that everyone wanted to buy one.
This growth in the automobile industry led to growth in other industries that the automobile relied on such as oil which powered the car, glass which was used to make the cars, tourism which became easier to engage in with a car and road building which provided a conduit for cars to move.
