Answer:
Option: They wanted to seek silver and gold there.
Explanation:
Americans first travel across the Great Plains to get gold and silver in the 1800s. After the Civil War, a vast amount of people from the east began to move in the West in search of gold. The first wave of settlers to the West were miners. The great plains region consists of Texas, Colorado, Kansas, Nebraska, and Oklahoma.
I would have to say technology is using fewer resources to manufacture goods more efficiently.
Honestly, none. The union didn't really have any agricultural advantages over the Confederacy, in fact, it can be argued that agriculture was one of the biggest disadvantages of the union.
Answer:
The American Red Cross and the United Service Organizations
Explanation:
Hope this helps :)