Biogeochemical Cycles

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Across
  1. 3. Precipitation and evaporation are components of the _________ cycle.
  2. 4. _____________ play a critical role in biogeochemical cycles because they break down dead matter into raw
  3. 6. Matter is neither created or _________.
  4. 8. Evaporation of water from plants.
  5. 9. The burning of fossil fuels.
  6. 13. Nitrogen _________ is a crucial part of the nitrogen cycle in which bacteria convert nitrogen from the atmosphere
  7. 15. ammonia.
  8. 16. Water, carbon or nitrogen cycling from the physical environment to living things is known as a ________ cycle.
  9. 17. The process that coverts nitrate into nitrogen gas.
Down
  1. 1. Process required for cloud formation.
  2. 2. Nitrogen in the __________ is not usable by most organisms.
  3. 5. Cellular respiration and photosynthesis are components of the ________ cycle.
  4. 7. As temperatures rise, liquid water vaporizes.
  5. 10. The nitrogen cycle relies heavily on plants and __________.
  6. 11. Ammonification and assimilation are components of the _______ cycle.
  7. 12. Many of our energy resources, such as oil, are derived from decayed organisms. We call these _________ fuels.
  8. 14. Most of the nitrogen cycle occurs in the ________.