Across
- 2. frozen seawater that floats on surface of ocean
- 4. period of cooling that lasted from 16th to 19th centuries
- 7. thin layer of gases that surrounds the earth
- 9. increase of surface temp has aspects of plant ___ seasons
- 13. season with more CO2 release
- 15. greenhouse gas
- 16. volcanic eruption release ____ _____ that cause a cooling effect
- 17. planet with a thinner atmosphere that has no greenhouse affect
- 18. darkers spots on sun created by intense magnetic fields
- 19. the sun emits ____ radiation when more sunspots are presents
Down
- 1. season with more CO2 absorption and photosynthesis
- 3. sunspots fluctuate from a max to min of ____ years
- 5. layer that contains the air that we breathe
- 6. earths overall surface temp is low enough to have glaciers
- 7. area of greatest warming
- 8. weakened greenhouse affect due to removal of carbon
- 10. sea level is ____
- 11. water vapor, carbon dioxide, methane
- 12. the CO2 seasons correspond to seasonal changes in the _______
- 14. warmer temps have increased range of many pest