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Questions and Answers
What was the date of the major explosive eruption at Mount St. Helens?
What was the date of the major explosive eruption at Mount St. Helens?
- August 12, 1980
- July 4, 1980
- May 18, 1980 (correct)
- March 27, 1980
How many people were killed as a result of the Mount St. Helens eruption in 1980?
How many people were killed as a result of the Mount St. Helens eruption in 1980?
- 27
- 57 (correct)
- 107
- 87
What triggered the massive debris avalanche at Mount St. Helens?
What triggered the massive debris avalanche at Mount St. Helens?
- Tsunami
- Magnitude 5.1 earthquake (correct)
- Volcanic eruption
- Landslide
What was the volume of the debris avalanche that resulted from the Mount St. Helens eruption?
What was the volume of the debris avalanche that resulted from the Mount St. Helens eruption?
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How did aquatic ecosystems in the area near Mount St. Helens respond to the eruption?
How did aquatic ecosystems in the area near Mount St. Helens respond to the eruption?
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What is the current elevation of Mount St. Helens after the 1980 eruption?
What is the current elevation of Mount St. Helens after the 1980 eruption?
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