Different thinking levels created sectionalism as people began to realize more about the world and people were educated enough to form their own ideas and have critical thinking skills.
Explanation:
The core is mostly made up of iron
Answer:
The Transcontinental Railroad dramatically altered ecosystems. For instance, it brought thousands of hunters who killed the bison Native people relied on. The Cheyenne experience was different. The railroad disrupted intertribal trade on the Plains, and thereby broke a core aspect of Cheyenne economic life
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