Global systems

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Across
  1. 5. The clearing of trees for land
  2. 6. The layer where all living things exist
  3. 11. The effect of heat from the sun being
  4. 12. The process where fuel reacts rapidly with oxygen to produce energy and carbon dioxide
  5. 13. The layer of gases around earth
  6. 14. The layer of all the water on earth
  7. 15. The intensification of the greenhouse effect from the increase of greenhouse gases in the atmosphere.
  8. 16. The process where carbon dioxide is converted to oxygen, glucose and water vapor in the presence of light
Down
  1. 1. Term used to define amount of carbon dioxide produced by a person
  2. 2. Rain that combines with acidic chemicals
  3. 3. Increase of the surface of the earth
  4. 4. The change of the climate over a certain area
  5. 5. Organisms that break down dead and dying material
  6. 7. Gases that cause the greenhouse effect
  7. 8. The crust of earth
  8. 9. Fuel made from ancient organic material
  9. 10. Living things