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Flashcards in Volcanoes Deck (2)
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What is a volcano?

vent or fissure in the earth's crust (or in the surface of some other planet) through which molten lava and gases erupt.


Where does volcanic activity occur?

In 3 main areas of plates:
1. Spreading ridges undersea and on continents (Divergent boundaries, new crust produced)
2. Subduction zones (Convergent boundaries, old crust destroyed)
3. Hot Spots within plates