Carbon Cycle

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Across
  1. 2. dioxide __________ is pulled during photosynthesis
  2. 6. carbon atoms can return to the ____________.
  3. 7. when an animal dies they release carbon, because their bodies _________________ .
  4. 11. process that takes carbon in to make food.
  5. 12. fossil fuels release ____________
Down
  1. 1. reservoir oceans contain earth's _________ _________ of carbon
  2. 3. additional carbon is stored here.
  3. 4. animal die and _________ this at the bottom of the ocean
  4. 5. carbon atoms are used _________
  5. 8. most_______ pull carbon in from water to use in shells,etc.
  6. 9. carbon is _________ are released slowly.
  7. 10. warming increased carbon dioxide leads to _______ _____________
  8. 11. ______ helps remove carbon dioxide from the atmosphere