Across
- 4. Caused by undersea earthquake or by a severe hurricane or cyclone.
- 6. When lava is below the Earth's surface.
- 7. Consists of frame,a spring,a stone,a drum,pen and paper.
Down
- 1. It is an opening on the Earth's surface.
- 2. Earthquakes are measured by this scale.
- 3. A area which receives no rain or less rain than normal for a long period.
- 5. The hot molten rock.