The Carbon Cycle

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Across
  1. 2. During this process C from their bodies is returned back to the atmosphere as CO2.
  2. 3. Process whereby plants use the light energy from the sun to produce carbohydrates in the form of glucose.
  3. 4. Organic (carbon-containing) compounds found in soil.
  4. 6. Involves the breakdown/ decay of rocks in their original place or close to the surface as result of acid rain (acidic carbonic acid).
  5. 8. The process of burning something
  6. 11. A natural feature, such as a rock, a pinch of soil, or an organism, that stores carbon-containing molecules and exchanges them with other carbon reservoirs.
  7. 12. techniques to prevent water loss and soil erosion
  8. 15. The removal of trees faster than forests can replace themselves.
  9. 16. The transfer of carbon from the atmosphere to plants, soils, rock formations and oceans.
  10. 17. When organic materials (containing C) is burned in the presence of oxygen (e.g. coal in a power station), it is converted into CO2 and water – this is known as combustion.
  11. 18. Planting seeds or trees to make a forest on land that has not been a forest recently, or which has never been a forest.
  12. 19. technologies or approaches that remove carbon dioxide from power plant or other emissions, in an effort to mitigate global climate change
  13. 20. Chemical process happening in all cells in both plants & animals. Glucose converted into energy (used for growth, repair, movement, control of body temperature). C is then exhaled and returned to the atmosphere.
Down
  1. 1. Respiration that requires oxygen
  2. 5. Respiration in the absence of oxygen. This produces methane
  3. 7. Where gases come out of solution
  4. 9. The total mass of organisms in a given area or volume.
  5. 10. A very weak acid formed in solution when carbon dioxide dissolves in water.
  6. 13. Organic matter buried by sediments and becomes compacted. Over. millions of years these organic sediments containing C may form hydrocarbons e.g. coal & oil.
  7. 14. Compressed, soggy, acidic mat of accumulated remains of peat mosses.
  8. 16. Captures carbon dioxide and stores it instead of releasing out into the atmosphere