Across
- 2. addition of too much salt. salt is good in small
- 6. Circular currents in the mantle/asthenosphere caused by the magma being heated by the core off the Earth.
- 11. compressed, longitudinal, the fastest wave
- 13. the center of the earth
- 16. A severe storm that develops over tropical oceans and whose strong winds of more than 120 km/h spiral in toward the intensely low-pressure storm center
- 17. the removal of soil from a given area while Degradation is when the soil remains in the same place but becomes poorer in quality because of nutrient imbalances, salinization, etc
- 20. Point at the depth where the rocks ruptured to produce earthquakes
- 21. A molten mixture of rock-forming substances, gases, and water from the mantle
- 22. primarily of dense iron-rich materials
- 23. -3428 km in radius
- 26. Boundary between two plates that are sliding past each other (ex. San Andreas Fault in CA)
- 27. caused by earthquakes at an epicenter located on the ocean floor, or by an underwater landslide activated by an earthquake
- 31. -5 - 70 km thick
- 33. a fuel drive from biological material that became fossilized millions of years ago
- 34. hot (7000 - 10,000 °C) sphere of very dense nickel and iron
- 35. Boundary between tectonic plates in which the two plates move away from each other, and new crust is created between them
- 36. Point on Earth's surface directly above an earthquake's focus
- 37. currents likely gives rise to Earth's magnetic field
Down
- 1. caused by movement between earth's tectonic plates
- 3. but irrigation can oversalinate and make soils toxic
- 4. broad, shield-shaped volcanoes, have high-viscosity lava that flows so these are typically not catastrophic
- 5. crust and core
- 7. crust, mantle, and core
- 8. Liquid magma that reaches the surface; also the rock formed when liquid lava hardens
- 9. formed by the subduction of either a convergent older oceanic plate against a younger oceanic plate or an oceanic plate against a continental plate
- 10. -2900 km thick
- 12. the breakdown of parent material (rocks, minerals, wood, etc.) into soils by earth's atmosphere, waters, or biological organisms, which will eventually be removed.
- 14. measure waves that affect earthquakes
- 15. fluid and moving due to convection currents
- 18. Fuel derived from radioactive materials that give off energy
- 19. any displacement of large amounts of soil down slopes over a (typically) short period of time. It is primarily caused by gravity and human causes, and the general classes are landslides, rockfalls, earth slumps, or mudslides
- 20. a fracture in rock across which there is movement. Is formed by a continental transform plate interaction, has lots of seismicity and minor rifting
- 24. liquid petroleum that is removed from the ground
- 25. a graph that show the seismic waves
- 28. composer of giant crystals of metal running North to South
- 29. massive volcano
- 30. transverse, cannot travel through liquid or gas, intermediately fast
- 32. A tectonic plate boundary where two plates collide, come together, or crash into each other
- 34. and lightweight compared to mantle