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Mount St. Helens: Quiz


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Question 1:
How many feet above sea level is Mount St. Helens?

Question 2:
What type is thing is Mount St. Helens?
Active stratovolcano
Oil on oak
Rifle / Dangerous Game

Question 3: Another victim of the 1980 eruption was 30-year-old ________ David A. Johnston, who was stationed on the nearby Coldwater Ridge.
LavaVolcanologyGeologyMount Vesuvius

Question 4: Helens' lava, with the addition of olivine and ________.
Flood basaltGraniteBasaltIgneous rock

Question 5:

Question 6: Trace deposits have been found as far northeast as Banff National Park in ________, and as far southeast as eastern Oregon.
CanadaQuebecBritish ColumbiaAlberta

Question 7: ________ that originate on the volcano enter three main river systems: the Toutle River on the north and northwest, the Kalama River on the west, and the Lewis River on the south and east.
WaterRiver deltaDrainage basinStream

Question 8: [3] The volcano is considered the most active in the Cascades within the ________ epoch (the last 10,000 or so years).
Geologic time scale10th millennium BCPleistoceneHolocene

Question 9: U.S. President ________ surveyed the damage and said, "Someone said this area looked like a moonscape.
Jimmy CarterLyndon B. JohnsonJohn F. KennedyHarry S. Truman

Question 10: [19] During the first century, mudflows moved 30 miles (50 km) down the Toutle and Kalama river valleys and may have reached the ________.
WashingtonCelilo FallsColumbia RiverSnake River

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