The answer is: b. States have intangible boundaries.
A state boundaries is considered to be 'intangible' if they do not possess a physical form that clearly separate one area with the other. Currently, the most states in united states have a physical structure or natural objects (such as forests or mountain) that they use as a sign that separate their territories.
<span> Ivan Allen, Jr., removed them
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In a series of Supreme Court rulings under Chief Justice Earl Warren, beginning with Brown v. Board of Education in 1954, "separate but equal" facilities were found to be unconstitutional because new research demonstrated that separating students by "race" was detrimental to them, even if facilities were equal.
<h3>Which Supreme Court decision caused the separate but equal concept to be abolished?</h3>
- The separate but equal theory was abolished as a result of the Brown v. Board of Education Supreme Court ruling.
- The 1954 Supreme Court decision Brown v. Board of Education, which overturned the "separate but equal" principle and ordered an end to school segregation, is one of the most well-known decisions to come out of this time period.
- "Separate but equal" facilities were found to be unconstitutional in a series of Supreme Court decisions made under Chief Justice Earl Warren, starting with Brown v. Board of Education in 1954, because new research showed that dividing students by "race" was harmful to them even if facilities were equal.
- "Separate but equal" facilities were found to be unconstitutional in a series of Supreme Court decisions made under Chief Justice Earl Warren, starting with Brown v. Board of Education in 1954, because new research showed that dividing students by "race" was harmful to them even if facilities were equal.
To learn more about the Brown v. Board of Education Supreme Court, refer to the following link:
brainly.com/question/9822748
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<span>Electors vote by ballot in respective states; electoral college- designates what will happen if no majority</span>
