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The total area under a normal curve increases as the standard deviation increases.
Eocene
The Eocene is a geological epoch that lasted from about 56 to 33.9 million years ago, during which warm climates prevailed and early mammals diversified following the extinction of the dinosaurs.
Continental Drift
The theory that the Earth's continents have moved over geological time relative to each other, thus appearing to have "drifted" across the ocean bed.
Earth's Surface
The outermost layer of the Earth comprised of land and water where various life forms exist.
Plate Tectonics
A scientific theory explaining the movement of the Earth's lithospheric plates on the asthenosphere, causing continental drift, earthquakes, volcanoes, and the formation of mountains.
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