Global Systems

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Across
  1. 1. Four-fiths of the volume of the atmosphere
  2. 3. Average weather in a place over many years
  3. 5. Resources that are dependent on regrowth
  4. 9. A substance charged into the air
  5. 11. the part of the invisible spectrum
  6. 12. Dioxide produced through combustion and respiration
  7. 15. the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water.
  8. 17. a colorless, odorless, flammable gas
  9. 18. Areas on Earth where in layers of rock and soil never rise above freezing point
  10. 19. Effect Warming of earth caused by greenhouse gases
  11. 21. The land masses on Earth
  12. 22. Receding of glaciers
  13. 25. Fuels which contain carbon of plants and animals that are dead
  14. 27. The conditions in the atmosphere
Down
  1. 2. A thick layer covering a large area for a long period of time
  2. 4. Leaves an object in form of waves
  3. 6. Global conveyor belt
  4. 7. fuel, as wood or ethanol, derived from biomass.
  5. 8. Removal of large forest areas
  6. 10. All the liquid water on the earths surface
  7. 13. layers of gases surrounding the planet
  8. 14. Opposite of evaporation
  9. 16. The process of water molecules escaping the surface of the Earth and entering the atmosphere
  10. 20. All living things on Earth
  11. 23. Complex set of relationships
  12. 24. Infrared radiation
  13. 26. What causes drought in parts of Australia