Across
- 5. forces that act in the interior of the Earth
- 6. Steep perpendicular face of a rock along a sea coast
- 7. river of ice
- 8. Large body of sea water
Down
- 1. sudden descent of water in bed of a river is called
- 2. forces that act on the surface of the Earth
- 3. study of earthquake waves
- 4. an opening in the Earth's crust from where molten rocks and gases erupt