1. Molten rock found on earth's surface is called 2. Molten rock found underneath earth's surface is called
3. Many volcanoes form at
boundaries.
4. When subduction occurs with two continents you get volcanic
5. When subduction occurs at the sea, we call the volcanoes
6. Volcanoes can also occur at divergent boundaries. When plates move apart on land,
form.
7. What other land feature forms at divergent boundaries in the water?
8. What determines if a volcano is quiet or explosive?