Across
- 3. is the shaking of the surface of the Earth resulting from a sudden release of energy in the Earth's lithosphere that creates seismic waves.
- 4. is a group of mountain ranges with similarity in form, structure, and alignment that have arisen from the same cause, usually an orogeny.
- 9. is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.
- 10. is a major area in the basin of the Pacific Ocean where many earthquakes and volcanic eruptions occur.
Down
- 1. is a large landform that rises above the surrounding land in a limited area, usually in the form of a peak.
- 2. is a geological process that takes place at convergent boundaries of tectonic plates where one plate moves under another and is forced to sink due to high gravitational potential energy into the mantle.
- 4. is a seafloor mountain system formed by plate tectonics.
- 5. is molten rock that has been expelled from the interior of some planets and some of their moons.
- 6. is a mountain range in Asia separating the plains of the Indian subcontinent from the Tibetan Plateau. The range has many of Earth's highest peaks, including the highest, Mount Everest.
- 7. is the point on the Earth's surface directly above a hypocenter or focus, the point where an earthquake or an underground explosion originates.
- 8. is a series of mountains or hills ranged in a line and connected by high ground.