Causes
Magma
Types
Eruption Style
Other
300
How did the Hawaii'n volcanoes form
What is hot spots
300
Violent eruption styles have what
What is lava and dissolved gasses
300
How long age did Yellowstone Caldera in Wyoming erupt?
What is about 630,000 years ago
400
What type plate boundaries do volcanoes at the mid ocean ridge form?
What is divergent plate bountary
400
What's the main chemical compound in magma
What is silica
400
Which type is made of andesitic and rhyolitic lava?
What is composite
400
Describe pyroclastic flow?
What is fast moving avalanche of hot rock and ash
500
What are volcanoes not associated with any tectonic plate boundaries called?
What is hot spots
500
What in magma affects viscosity?
What is silica
500
What type is large and steep sided
What is composite
500
What in magma affects eruption style?
What is dissolved gasses
500
Who are people who study volcanos?
What is seismologists
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