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.
Many Anti-Federalists preferred a weak central government because they equated a strong government with British tyranny. Others wanted to encourage democracy and feared a strong government that would be dominated by the wealthy. They felt that the states were giving up too much power to the new federal government.
It was that "Flat land with poor drainage led to salinization from irrigation waters," that was a factor in the decline of Sumer, since this led to a build up of salt in the soil, which greatly reduced agricultural output.
