carbon cycle

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Across
  1. 2. ( )+oxygen-> carbon dioxide+water
  2. 4. The process which plants remove large amounts of carbon dioxide from the atmosphere
  3. 6. The process releases carbon dioxide to the air
  4. 7. The green pigment in plants that traps the light and acts as a catalyst
  5. 9. Non-renewable resource of energy
  6. 10. ( )+oxygen-> carbon dioxide+water
  7. 12. Respiration and carbon dioxide are roughly ( ) so that the amount of carbon dioxide in the air remains fairly constant
Down
  1. 1. What unbalance the carbon cycle
  2. 3. The breakdown of a substance into two or more products
  3. 5. most of the carbon in the carbon cycle is found here
  4. 8. Gas given off by plants
  5. 9. Less of these buildings will help reduce carbon dioxide dramatically
  6. 11. Carbon dioxide+( )->glucose+oxygen