Trivia- Volcano's

I'm missing my friend Kim and this bit of trivia is in honor of her move to Hawaii...enjoy!



Volcanoes are vents in the Earth's surface from which
molten rock, debris, and steam issue. About 1,900 volcanoes
are active today or known to have been active in historical
times.
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Almost 90 percent of volcanoes are in the Ring of Fire, a
band of volcanoes circling the edges of the Pacific Ocean.
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Most volcanoes occur at plate boundaries, areas where huge
slabs of rock meet in the Earth's lithosphere, or outer shell.
Volcanoes can rise in subduction zones, areas where plates
meet and one is pushed beneath another. Molten rock rises to
the surface and forms a volcano.

Intraplate volcanoes are caused by hot spots deep within
the Earth. Magma rises and erupts as lava through cracks
in the Earth's surface, forming volcanoes.
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Volcanoes can erupt in a combination of ways: explosively
with hard pyroclastic material; explosively with fluid lava
(lava fountains); effusively with hard pyroclastic flows
(clouds of ash and gases); and effusively with fluid lava.
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Although some volcanoes are considered extinct, almost any
volcano is capable of rumbling to life again. Volcanoes
provide valuable mineral deposits, fertile soils, and
geothermal energy.