Across
- 2. Boundary - known as a destructive plate boundary
- 4. - known as a seismic sea wave
- 6. -before the continental drift
- 7. Spreading -a process that occurs at mid-ocean ridges
Down
- 1. Boundary -a constructive boundary
- 3. -the perceptible shaking of the surface of the Earth
- 4. Boundary -a conservative plate boundary
- 5. -a rupture in the crust of a planetary-mass object