The Carbon Cycle

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Across
  1. 1. Cycle The recycling of carbon between living (biotic) and nonliving (abiotic) parts of the Photosynthesis plants use the sun's energy to change water and carbon dioxide into sugars (glucose) and Oxygen. Carbon is removed from the atmosphere and stored in food
  2. 5. burning a substance as a fuel (wood, fossil fuels) releases CO2 into the atmosphere.
  3. 7. Coal, oil, natural gas, and other fuels that are ancient remains of plants and animals.
  4. 8. The ultimate source of energy for all living things.
  5. 9. The breakdown of dead matter and wastes by decomposers; stored carbon from animal remains is released back into the atmosphere as carbon dioxide
Down
  1. 2. Part of Earth in which life exists (including land, water, and air or atmosphere)
  2. 3. An organism that must eat other organisms; consumers in an ecosystem
  3. 4. The form of carbon released into the atmosphere
  4. 6. A system formed by the interaction of a community of organisms with their physical environment