Volcano

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The definition of volcano from wikipedia: A **volcano** is an opening, or rupture, in a planet's surface or [|crust], which allows hot, molten rock, ash, and gases to escape from below the surface. Volcanic activity involving the [|extrusion] of rock tends to form mountains or features like mountains over a period of time. Volcanoes are generally found where [|tectonic plates] are pulled apart or come together. A [|mid-oceanic ridge], for example the [|Mid-Atlantic Ridge], has examples of volcanoes caused by "[|divergent tectonic plates]" pulling apart; the [|Pacific Ring of Fire] has examples of volcanoes caused by "[|convergent tectonic plates]" coming together. By contrast, volcanoes are usually not created where two tectonic plates slide past one another. Volcanoes can also form where there is stretching and thinning of the [|Earth's crust] (called "non-hotspot intraplate volcanism"), such as in the [|African Rift Valley], the [|Wells Gray-Clearwater Volcanic Field] and the [|Rio Grande Rift] in North America and the European [|Rhine Graben] with its [|Eifel] volcanoes..

Things to accomplish today 1. Use the .kmz file and tour the various volcanoes. Be sure to read the descriptions to determine the type of each volcano. 2. Each bubble will include three icons representing the three types of volcanoes along with the classification and HTML code. At each stop: 3. Go to [|www.bubbl.us] and create edit the volcano graph. 4. Respond to the Volcano thread posted on the discussion page. Reply to at least two other posts.
 * Determine the type volcano you are visiting.
 * Edit the description to delete the code for the other two icons that do not match the volcano type.
 * Edit the description to explain why you made the classification. When you view your bubble, you should see only one volcano "type" icon and your explanation in red font.

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