The exact details of this equilibrium are still being explored. In a region like the Appalachians in north-eastern North America, or the Scottish Highlands, erosive forces like rivers and landslides are cutting mountains down lower and lower, Headley says. "But in regions with tectonic activity, the tectonic force can be driving the mountains up slower, faster, or at around the same rate as the erosion is cutting it down. We don't fully understand all the drivers in those types of systems." อ่านต่อเพิ่มเติม โรงเรียนวัดวังรีบุญเลิศ

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