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