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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15th Amendment extended voting rights to African-American men.
19th Amendment extended voting rights to women.
23rd Amendment extended voting rights to citizens in DC.
24th Amendment prohibited the prior poll tax.
26th Amendment extended voting rights to those at least 18 years old.
Answer:
Frequent changes in leaders so it was hard to have stability
The plague of Justinian plagues was a pandemic that afflicted the eastern Roman Empire especially its capital Constantinople the Sassanid empire and port cities around the entire Mediterranean Sea
How long it lasted was for 541 AD - 542 AD
