They used levees, which were walls used to keep water flowing where it was wanted/ needed.
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If light cannot get through an object, the surface on the other side of that object (for example, the ground or a wall) will have less light reaching it. A shadow is not a reflection, even though it is often the same shape as the object. The shape of the object determines the shape of the shadow
John Fitzgerald "Jack" Kennedy, commonly referred to by his initials JFK, was an American politician who served as the 35th President of the United States from January 1961 until his assassination in November 1963.
Answer:
The States had the power to tax under the Articles of Confederation, but the central government didn't so I would say it's: Only the states could raise taxes, so the national government had a hard time paying its debts and expenses
