Answer:
successful completion of the transcontinental rail world, which reduced the travel time across the continent form several months to one week.
Explanation:
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Article VI, Paragraph 2 of the U.S. Constitution is commonly referred to as the Supremacy Clause. It establishes that the federal constitution, and federal law generally, take precedence over state laws, and even state constitutions. Yeet- am I smart jk
imagine you are a king/queen and its time for you to step down as reining monarch, your mother and father are your predecesors and therefore your son or daughter would be heir, normally its the first born child