January 14, 2012

General Information Part 1

What causes earthquakes and volcanoes?

Earthquakes and volcanoes often seem to occur together. They happen most often in parts of the earth where two of the plates making up the crust meet. Rocks are either pushed up to form mountains or ridges or sink down into the earth's mantle to create trenches. This movement makes the Earth's surface unstable, and earthquakes and volcanoes are likely to occur. Scientists can tell where earthquakes and volcanoes are likely to happen, BUT THEY CANNOT PREDICT EXACTLY WHEN.

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