Across
- 2. The natural loss of species through evolution is called ____________ extinction.
- 5. The second compositional layer of Earth.
- 7. The outermost compositional layer of Earth.
- 8. Scientists believe humans may be causing a ________ mass extinction.
- 9. An earthquake is an example of a geologic _______.
- 12. The deepest, center layer of the earth.
- 14. The Earth's Layers classified by what elements are in each layer.
- 15. The outermost mechanical layer of Earth.
- 16. This plays a role in mass extinctions because it is closely tied to climate change.
Down
- 1. Weathering is an example of a geologic ________.
- 3. The term for the movement of the lithosphere on top of the asthenosphere. This process is a cause for many geologic events.
- 4. The third mechanical layer of Earth.
- 6. The second mechanical layer of Earth.
- 10. Too much CO2 in the atmosphere can cause the ____________ to rise.
- 11. This type of event is what happens when 75% or more species are lost in a short period of time.
- 13. The Earth's Layers classified by how seismic waves travel through each layer.
