Carbon Cycle

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Across
  1. 2. burning fossil fuels
  2. 4. layer of gas surrounding the earth
  3. 7. all the living or once living organisms
  4. 8. the breaking down of organic matter
Down
  1. 1. anything that puts carbon into the atmosphere
  2. 3. any process that pulls carbon from the atmosphere
  3. 5. the nonliving, solid parts of the earth
  4. 6. all water, solid, liquid, or gas