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"How much do you know about volcanoes? These fearsome but useful planetary features have created about 80% of the landmass we call home."
15 Points Per Correct Answer - No time limit
Which of the following countries has the most volcanoes?
Is it possible for people to live within a volcano's caldera?
What does "dormant" mean when used to refer to a volcano?
Ready to erupt
Historically, the largest known volcanic explosion is which of the following?
Krakatoa (Indonesia, 1883)
Tambora (Indonesia, 1815)
Mt. Tarawera (New Zealand, 1886)
Katmai (Alaska USA, 1912)
The deadliest volcanoes tend to occur in the presence of this geologic phenomenon.
Conservative-margin plate tectonics
This is the scale used to measure the size of volcanic eruptions.
Volcano Eruptivity Scale
Volcanic Explosivity Index
A pyroclastic flow is the same as a nuee ardente.
Which volcanic term is INCORRECTLY matched with its synonym?
Phreatic eruption (Turbulent lava eruption)
Tephra (Falling particles, such as ash)
Scoria (Bubbly or frothy lava rock)
If you lived on Earth during the past two millenia and died as a result of volcanic activity, statistically this was the most likely cause of your death.
Mud and ash
Which of the following is NOT a benefit of volcanic activity?
Valuable metal deposits
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Compiled Jun 28 12