Across
- 2. causes earthquakes
- 3. formed by a divergent
- 4. these create volcanoes
- 6. lava which is underground
- 8. forms a rift-valley
- 9. when one plate goes under another
Down
- 1. people live on these
- 5. under the sea
- 6. second layer of the earth
- 7. different for continental and oceanic plates