Across
- 2. The topmost layer of the earth.
- 6. A boundary where plates move away from each other.
- 7. A deep portion in the ocean floor where the layers of rock are pushed down
- 8. Large pieces of the Earth’s crust that are separated by boundaries.
Down
- 1. A boundary where plates towards each other.
- 3. The process by which the ocean floor sinks beneath a Deep-ocean trench.
- 4. It is a boundary where two plates slide past each other.
- 5. It is an underwater ridge that pushes molten earth material to the ocean ridge which forms into new crust.