<span>Sand dunes can encroach on human habitats. Sand dunes move through a few different means, all of them assisted by wind. One way that dunes can move is through saltation, where sand particles skip along the ground like a rock thrown across a pond might skip across the water's surface. When these skipping particles land, they may knock into other particles and cause them to skip as well. With slightly stronger winds, particles collide in mid-air, causing sheet flows. In a major dust storm, dunes may move tens of meters through such sheet flows. And like snow, sand avalanches, falling down the steep slopes of the dunes that face away from the winds, also moving the dunes forward.
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That is a good question.The answer to that is limitless as well. We had one main goal though when we started our nation. That was to create a nation that was not like England. Recently there was the election for our president. We have our elections so that we the people have a vote in what is going on with our nation where as when there was a king we had no choice.
The purpose was to amend the Articles of Confederation.
London and Paris are major. rome? Athens?
The Articles of confederation did not give the national government any power to force taxes.
