| Question 1: The most famous geyser in the park, and perhaps the world, is ________, located in Upper Geyser Basin. | |||
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| Question 2: In Yellowstone's hot waters, ________ form mats of bizarre shapes consisting of trillions of individuals. | |||
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| Question 3: Near the end of the ________, French trappers named the river "Roche Jaune," which is probably a translation of the Minnetaree name "Mi tsi a-da-zi" (Rock Yellow River). | |||
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| Question 4: In the winter, all roads aside from the one which enters from ________, and extends to Cooke City, Montana, are closed to wheeled vehicles. | |||
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| Question 5: There are 290 ________ of at least 15 feet (4.6 m) in the park, the highest being the Lower Falls of the Yellowstone River at 308 feet (94 m). | |||
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| Question 6: The canyon is a classic ________, indicative of river-type erosion rather than erosion caused by glaciation. | |||
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| Question 7: In 2005, researchers from the ________ discovered that the sustenance for at least some of the diverse hyperthermophilic species is molecular hydrogen. | |||
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| Question 8: [9] These ________, of the Clovis culture, used the significant amounts of obsidian found in the park to make such cutting tools and weapons. | |||
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| Question 9: It formed the relatively small caldera that contains the ________ of Yellowstone Lake. | |||
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| Question 10: In a paper known as the ________, the committee observed that culling programs at other national parks had been ineffective, and recommended management of Yellowstone's elk population. | |||
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