<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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Scientist bgan to really observe the world around them
Answer:
Explanation:
The asnwer is in fact A. They made new systems for labor which were tenant farming and sharecropping.
A is the best example.
King Phillip's War occurred in MA, CT, and RI during 1675-1678 after the death of Massasoit and the ascension of his son Metacomet to the leadership of the Wampanog tribe. The power dynamic changed the relationship between the colonizers and the native population, who were beginning to feel like they were being taken advantage of. The war largely ended with the colonists winning and Metacomet dying.
The Space Age is thought to have officially begun on October 4th, 1957, with the launch of Sputnik 1 by the Soviet Union – the first artificial satellite to be launched into orbit.
