introduction
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- caldera
- vesicularity
- pahoehoe
- rheology
- lahar
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A volcano is a location where magma,
or hot melted rock from within a planet, reaches the surface.
It may happen violently, in a massive supersonic explosion,
or more quietly, as a sticky, slow lava flow.
Volcanoes have been a part of earth's history long before
humans. Compare the history of human beings, a few million
years in the making, to that of the Earth, over four
billion years in the making.
And then, we could all see
at once the brilliant purpose
of the paragraph tag.
Moving on...
the more tags you write,
the better you will feel?
Volcano Terminology
Volcanic Places in the USA
Mount St Helens
Long Valley
Volcanic Places on Mars
Research Project
References
http://www.yahoo.com