Across
- 3. a boundary in which two plates move
- 5. mountain turned in parts
- 6. that develop within a continent
- 8. occurs when igneous rocks melt over a temp range
- 9. a chain of volcanic islands
Down
- 1. a hypothesis
- 2. a narrow,elongated depression of the seafloor
- 4. a boundary in which two plates move
- 5. which can widen to form a narrow sea
- 7. elevated areas of the sea floor