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        6-12

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        Plate Tectonics: Lake Mead, Nevada

        Contrary to what most geologists thought less than 100 years ago, we live on a dynamic planet. Earth's surface has changed in countless ways during the 4.6 billion years since it formed, and it continues to change today. This video segment adapted from Discovering Women looks at some of the geologic processes that have shaped the landscape near Lake Mead, Nevada, and suggests that these processes may be causing North America to slowly break apart.

        This video is available in both English and Spanish audio, along with corresponding closed captions.

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