Across
- 3. Warm ocean temperatures
- 8. Plants converting energy
- 11. The carbon systems rotation in Earth
- 13. The emission of electromagnetic waves of energy
- 14. large scale ocean circulation
- 16. A natural source that will replenish itself
- 18. Long-term weather averages
- 19. Naturally occurring compound of two oxygen atoms and a single carbon atom
- 21. Living and non-living things in a community
- 22. A chemical element with the symbol N
- 24. Gases surrounding the Earth
- 25. a large mass of glacier
- 27. Decomposition of dead organisms
Down
- 1. Frozen soil or rock
- 2. Air pollutants
- 4. A radio wave of a wavelength above one kilometer
- 5. image sensor which detects the relationship between light and heat
- 6. Warming the Earth's surface
- 7. A greenhouse gas that can be emitted from livestock
- 9. Water component of the Earth
- 10. Periods between glaciations
- 11. Gas to a liquid form
- 12. A global sum of all the ecosystems
- 15. Land component of the Earth
- 17. Liquid to a gas form
- 20. Removal of forests
- 23. temperatures and conditions in the atmosphere
- 26. Renewable energy sources based upon chemicals and organisms