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The continent of North America is not a single, thick, rigid slab, but is instead more similar to a layer cake, with a section of 3-billion-year-old rock sitting atop much newer material, a new study ...
There are seven continents on Earth, or so we learned in school. But it turns out that these designations are not as straightforward as they seem, and different scientists have different views on how ...
The Nature Network on MSN
15 facts about the world’s continents you should know (but probably don’t)
Most people can point to the seven continents on a map, but the actual reality of these massive landmasses is […] ...
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