Controls given to- one branch of government to limit the power of another branch are known as

The U.S Contitution because it controls given to one branch of government to limit the power of another branch.

The transcontinental railroad provided a means of fast transportation. it cut a 6 month trip into 6 days, created jobs for many people and encouraged immigration. the homestead act played a huge role in western expansion; it allowed settlers to begin a fresh start, and gave them land in exchange for their residence for up to five years and a small fee.