Nitrogen cycle

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Across
  1. 3. liquid water changes to vapor
  2. 4. evaporation of water from plant leaves
  3. 5. rain, snow, sleet, or hail returning water to Earth
  4. 7. long-term carbon storage from buried organic matter
  5. 12. movement of water (and nutrients)
  6. 13. layer of rock or sediment holding groundwater
  7. 14. movement of elements through living organisms and the environment
  8. 15. water stored underground in aquifers
Down
  1. 1. the gases surrounding Earth
  2. 2. water vapor cools to liquid forming clouds
  3. 6. absorption of nutrients by an organism
  4. 8. the solid parts of Earth
  5. 9. flow of water into the ground to recharge aquifers
  6. 10. all water on, above, and below Earth’s surface
  7. 11. all living things on Earth