Ashenfelter Biology Carbon Cycle

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Across
  1. 5. the earth is a ___ system to carbon - the amount stays the same, but it cycles
  2. 6. this forms at the seafloor and stores carbon out of the atmosphere/ocean
  3. 7. the region of the ocean where phytoplankton sink to and store carbon
  4. 10. plant-like organisms that photosynthesize in the water/ocean and remove carbon from the water
  5. 13. when organisms access energy by breaking down organic compounds - releases carbon dioxide
  6. 14. (two words) form when dead organisms are compressed in the earth for millenia
  7. 15. a carbon ____ means a place where carbon is stored out of the atmosphere for a long time
Down
  1. 1. plants use carbon dioxide in this process and store carbon as their tissues
  2. 2. when carbon dioxide enters the ocean it becomes carbonic ____ changing the pH of the ocean
  3. 3. plant life that performs photosynthesis and stores carbon
  4. 4. the amount of carbon dioxide here is increasing due to human activities of burning
  5. 7. the process of dead things being decomposed, some carbon is then stored in soil, some goes to atmosphere
  6. 8. the carbon ____ describes how carbon moves from place to place on earth
  7. 9. releases the carbon stored in plants by combustion
  8. 11. when plants perform photosynthesis they take carbon dioxide, store the carbon as tissue, and release ___
  9. 12. the amount of carbon dioxide in the atmosphere is