The correct answer is continental drift.
They took the idea of Independence from Britain and evolved it into an idea of independence for slaves from their owners.
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The one that re-established the silver dollar as a form of currency and committed the u.S government tot he purchase of a certain amount of silver each month for coinage is : A. Bland-Allison Act
The act was enacted in 1878 by united states congress to put circulation to the silver dollars
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They get droughts ans some water contain parasites which is not good to drink