Answer:
Many Americans left farms and headed to the cities because the industrial revolution opened up many jobs in the cities. Also, the industrial revolution created more farm technology that allowed farmers to do the day's work with fewer people. This led to mass unemployment and peoples' dispersal into cities. This also caused cities to grow.
They die one again just stop my dude
Answer:
A is the correct answer
Explain:
You can easily rule out D because there are still conflicts to this day. Now you have it easier to get the right answer. WW2 was the first truly modern war, in the civil war and evem WW1 they still waited to see the whites of peoples eyes before they fired. And the majority of the battles were actually fought in the north.
I'm assuming you meant the civil war so the answer to that would be The Battle Of Gettysburg.
Http://www.revolutionary-war-and-beyond.com/establishment-clause.html this link will help you :)