Saturday, February 19, 2011

We Have Volcanoes To Thank For...

Once, our planet first was nothing but fire. Through the action of volcanoes' steam vents, water vapor became our atmosphere and clouds, which then rained down and made our oceans.

"Volcanic activity is the main process by which material from Earth's interior reaches its surface. Volcanoes played a large part in the formation of Earth's atmosphere, oceans, and continents."

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