Carbon Cycle with human influence

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Across
  1. 2. layers of gasses surrounding the earth
  2. 3. farming that produces CO2
  3. 7. 4th most abundant element within organisms
  4. 8. Human-emitted carbon isotope
  5. 10. gasses in the atmosphere that trap heat
Down
  1. 1. burning fossilized decay
  2. 4. plant pore that takes in carbon
  3. 5. Plant respiration
  4. 6. bonds with the same protons and different neutrons
  5. 9. process of producing energy