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