Across
- 2. There are _____ layers in the atmosphere.
- 5. One of two main greenhouse gases.
- 7. Isotope carbon plants use for Photosynthesis.
- 9. Period where glaciers grow/advance.
- 10. The study of intentionally changing natural processes of Earth.
- 13. Relationship between carbon dioxide concentration and global temps.
- 14. Period where the overall climate is warmer, leading the glaciers to retreat.
- 15. Thin layers of gases that surround the Earth.
Down
- 1. Reflective molecules that would be injected into the Stratosphere.
- 3. Layer between that acts as an absorber.
- 4. Frozen seawater that floats on the oceans surface.
- 6. Other main greenhouse gas.
- 8. The sun emits more radiation when ____ sunspots are present.
- 11. Period of time where the Earths overall surface temp. is lowered.
- 12. Daily atmospheric carbon dioxide concentrations are measured here.