End segregation in all public education. Brown v. Board of Education declared it unconstitutional to have segregated public schools leading to the desegregation of all schools following the 1954 decision.
Answer:
As the slab gets to a certain depth, it gets hot enough that it start to melt again. As it melts, it undergoes differentiation and also gets less dense. Low density means that it will start to rise back up again, usually, as granitic magma.
Explanation:
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