Which of the following were advantages the union troops had in their favor at gettysburg when compared to earlier battles?
they were able to attack a weaker enemy.
they established a strong defensive position.
they were defending their home soil.
they were very well led.

They established a strong defensive position.

Explanation:

Days prior to the arrival of the confederation army the union army had already taken position in Gettysburg and were prepared for the battle, they had arrived days aerlier than the confederate and were ready and waiting for more troops to arrive, the confederates then ordered a early attack but were finally defeated by the unions army.

answer; i believe that the correct answer is (agriculture);

after the roman empire, the catholic church began to unify by taking on many duties of a government.