Answer:
The lithosphere and the asthenosphere.
Explanation:
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It is because of subduction<span>: oceanic crust tends to get colder and denser with age as it spreads off the mid-ocean ridges. It gets so dense, that it sinks in the upper </span><span>mantle </span><span>(subduction). This is like a giant recycling system for oceanic lithosphere! Because continental crust is lighter than oceanic crust, continental crust cannot subduct. We therefore still have some very </span>old continental rocks<span> at the surface of the Earth.</span>
Answer:
During the three decades before the Civil War, popular writers created a stereotype, now known as the plantation legend, that described the South as a land of aristocratic planters, beautiful southern belles, poor white trash, faithful household slaves, and superstitious fieldhands.
