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Sci. 3-1 Earth’s Story and Those Who First Listened Pages 56-58

Sci. 3-1 Earth’s Story and Those Who First Listened Pages 56-58. A. Uniformitarianism - a principle that states that the same geologic processes shaping the Earth today have been at work throughout Earth’s history. 1. The present is the key to the past.

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Sci. 3-1 Earth’s Story and Those Who First Listened Pages 56-58

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  1. Sci. 3-1 • Earth’s Story and Those Who First Listened • Pages 56-58

  2. A. Uniformitarianism- a principle that states that the same geologic processes shaping the Earth today have been at work throughout Earth’s history.

  3. 1. The present is the key to the past.

  4. B. Catastrophism- a principle that states that all geologic change occurs suddenly.

  5. C. After James Hutton and Charles Lyell, most scientists rejected catastrophism. James Hutton Charles Lyell

  6. D. Today most scientists favor uniformitarianism but they recognize some geologic change as catastrophic.

  7. 1. Some scientists believe a huge asteroid struck the Earth and caused the extinction of dinosaurs.

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