<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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Answer:
option b is the ans
Explanation:
made slavery into an emotional and political issue
Answer:
is it supposed to just be a map
Explanation:
Thoureau wanted to poit to the fact that following traditions limits us and deprives us from developing our imgination. Thoreau, like other romantic authors, does not agree with tradition. He thinks it prevents people from finding true greatness and blocks their path to spirituality. "Castles in the air" are simply illusions by which people persuade themselves in something that is not true, in Thoureau's opinion.
Answer:
Ito ay nagdadala ng preskong hangin sa ating kapaligiran at ang kahalagahan nito ay ang mabigyang ganda o pagandahin ang ating kapaligiran
Explanation:
Kung mali man isipin nyo nalang kung anong magandang naidudulot ng halamansa atin
Hope it help
