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Praxis II 0014 Sci-a
Praxis II 0014 Earth System and Plate Tectonics
| Question | Answer |
|---|---|
| Atmosphere | (air) climate and meteorology |
| Lithosphere | (ground and surface) rock formation, soil formation, plate tectonics, and erosion |
| Hydrosphere | (water) water cycle, currents of rivers, and tides of oceans |
| Biosphere | (life) Ecosystems, habitats, and plant and animal realm |
| Exosphere (length of atmosphere layer) | from 300-600 mile to 6000 miles |
| Thermosphere (length of atmosphere layer) | (includes inosphere) 265000-285000 feet to 400+ miles |
| Mesophere (length of atmosphere layer) | 160000 feet to about 285000 |
| Stratosphere (length of atmosphere layer) | 23000-60000 to about 160000 feet |
| Troposphere (length of atmosphere layer) | 23000 to 60000 feet |
| Crust (earth layer) | 5-30 miles thick, not fixed, a mosaic of moving plates, outer shell |
| Mantel (earth layer) | 1800 miles thick, plasticity (ability of solid to flow), circulating currents, causing the plates to move |
| Outer Core (earth layer) | 1300 miles thick, viscous liquid, the earth's magnetic field originates here |
| Inner Core (earth layer) | 800 miles to the center of the earth, a solid |
| Plate Tectonics | about 20, vary in size and thickness continually drift and shift, continental plates and oceanic plates |
| Convergent | (plate movement) collision; creates mountains, volcanoes, ridges, recycling of crust |
| Transform | (plate movement) running; creates earthquakes |
| Divergent | (plate movement) Separating; creates new crust, rivers, oceans, lakes |