Carbon cycle

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Across
  1. 2. One third of the united states carbon consumption is used to operate what?
  2. 3. and Pressure- What is a fossil fuel? How are they made
  3. 5. what use the sun energy or chemical along with carbon dioxide to produce carbohydrates
  4. 7. of rocks What adds carbon dioxide to the atmosphere
  5. 9. how does carbon get in the oceans
  6. 12. dioxide What is a fossil fuel
  7. 13. is carbon an essential element to life
  8. 14. How many tons of carbon are released into earth atmosphere every year
  9. 16. quantities What are micronutrients
Down
  1. 1. How does carbon enter the biotic part of the ecosystem?
  2. 4. and water Where does carbon exists
  3. 6. how does carbon dioxide return to the atmosphere?
  4. 8. cycle Definition of the carbon cycle
  5. 10. quantities What are macronutrients
  6. 11. What is one primary producer
  7. 15. rocks Where is most of the carbon located and in what form