Which of these BEST describes an importance of the Appalachian Mountains for the state of Georgia? A. They are the oldest chain of mountains in North America
B. They serve as the main boundary between Georgia and Alabama
C. They serve as a “fall line” separates the area from the Coastal Plains region
D. They act as a means of collecting and diverting into Georgia’s river systems

A) They are the oldest chain of mountains in North America. B) They serve as the main boundary between Georgia and Alabama. C) They serve as the "fall line" separates the area from the Coastal Plains region. D) They act as a means of collecting and diverting rainfall into Georgia's river systems.  :)

the first phase of the government’s plan for settlement was building the transcontinental railroad. the railroad provided a way to bring settlers and manufactured goods west and ship their agricultural and mining produce east. the transcontinental railroad was an essential artery for rapid development of the frontier.

the second phase of the government’s plan was a liberal land distribution policy that made it possible for many people to homestead. with these two key elements—transportation and cheap land—the government rapidly achieved its goal of persuading people to move west, settle on farms, and push back the frontier.