Across
- 2. boundaries- new crust is created
- 5. boundaries- not a subduction zone
- 6. the upper layer of the earth's mantle
- 9. crust- older than oceanic crust, mostly granite rock
Down
- 1. boundaries- crust is neither created nor destroyed
- 3. mostly solid bulk of earth's interior
- 4. plates-irregularly shaped of solid rock
- 7. crust- consists mainly of basalt
- 8. the rigid outer part of the earth, consisting of the crust and upper mantle