Global Systems

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Across
  1. 5. A source in which can be renewed
  2. 6. Ice covering land for a long time
  3. 8. A layer of soil that never rises over the freezing point
  4. 10. What we humans breathe out
  5. 11. A gas that takes up 78% of the Earth's atmosphere
  6. 13. The act of clearing tree and forests
  7. 14. Fuel made of fossils
  8. 17. The cause of Global warming by greenhouse gases
  9. 20. The masses of land on Earth
  10. 22. All of life that is formed on Earth
  11. 23. The process of gas turning into liquid
  12. 26. The current condition of the atmosphere
  13. 27. The energy which comes from Sun
  14. 28. A extreme event that caused drought in parts of Australia
Down
  1. 1. Opposite of shortwave
  2. 2. The long term weather conditions
  3. 3. All the water on the Earth's surface
  4. 4. Formed from the breakdown of organic matters
  5. 7. The process in which liquid turns into gas
  6. 9. The process in which plants use to create their own food
  7. 12. The circulation of the ocean's flow caused by changes in the density
  8. 15. The time between glaciations
  9. 16. Fuel made of organic matters
  10. 18. The process of recycled Carbon
  11. 19. The radiation of a wave length from 800 nm to 1 mm
  12. 21. A system created by the interaction between organisms and their environment
  13. 24. The release of gas or radiation
  14. 25. The layer of gases that covers Earth