It has a racial inequalities that change over time
<span>People are "pushed" away from the rural areas because of the lack of opportunities in such areas. Many young people are also "pushed" by a lack of cultural/social opportunities in the rural areas. "Pull" factors are those that make people want to come to a given place.</span>
<span>Most historians believe early Native Americans crossed over the Bering Land Bridge from Asia to Alaska during the last Ice Age</span>
