5.14: Plate Tectonics- Challenge 2
- Page ID
- 5392
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- 1. ___ is the artificial process by which salt water is converted to fresh water.
- Desalination
- 2. Where are the oldest oceanic rocks found?
- Far from mid-ocean ridges
- 3. Seafloor spreading occurs at ___ boundaries.
- divergent
- 4. When material in the mantle is heated at Earth's core, it rises towards Earth's surface. As it rises, it cools, moves laterally, becomes denser, and sinks, creating a ___ cell.
- convection
- 5. ___ within the earth's mantle causes the plates to move.
- Convection
- 6. Seafloor spreading pushes older seafloor outward, and new seafloor is created at a ___.
- mid-ocean ridge
- 7. Two tectonic plates come together at a plate ___.
- boundary
- 8. In which layer of Earth are plate-moving convection currents located?
- Mantle
- 9. What are the three types of major plate boundaries?
- Divergent, transform, and convergent plate boundaries
- 10. ___ is an example of a transform boundary.
- The San Andreas Fault
- 11. Transform plate boundaries divide ___ into segments.
- mid-ocean ridges