Quote: "Among the questions that attracted interest in that fanatically inquisitive age was one that had puzzled people for a very long time—namely, why ancient clamshells and other marine fossils were so often found on mountaintops. How on earth did they get there? Those who thought they had a solution fell into two opposing camps. One group, known as the Neptunists, was convinced that everything on Earth, including seashells in improbably lofty places, could be explained by rising and falling sea levels. They believed that mountains, hills, and other features were as old as the Earth itself, and were changed only when water sloshed over them during periods of global flooding. "
Question: When they say they "changed only when water sloshed over them during periods of global flooding" are they talking about erosion or are they talking about the changing of what is above sea level?
Comment: This topic is really interesting because it's something most people wonder about breifly, but don't put serious thought behind, and its cool that these two groups of people have such strong theories as to why it happens.
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