List 3 things that shape ones public opinion? which is most important?

Family
School
Peer groups
Media

I believe that family is the most important because it has influenced you since birth

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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.