How were the interstate commerce act the sherman antitrust act and the clayton antitrust act similar?

The main way in which the interstate commerce act the Sherman antitrust act and the clayton antitrust act are all similar is that they all seek to limit the formation of monopolies and to encourage fair competition between businesses in the United States. 

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.