Biogeochemical

1234567891011121314151617
Across
  1. 6. the water found underground in the cracks and spaces in soil, sand and rock
  2. 7. a gas that supports life
  3. 10. a cycle that deals with water
  4. 12. a cycle by which is converted into multiple chemical forms
  5. 14. the transition of a substance directly from the solid to the gas state
  6. 15. when a liquid turns into a gas
  7. 17. any liquid or frozen water that forms in the atmosphere and falls to Earth
Down
  1. 1. an important step in the nitrogen cycle in soil
  2. 2. It is present in water and in almost all the molecules in living things.
  3. 3. any body of water above ground
  4. 4. the process of water movement through a plant
  5. 5. nature's way of reusing atoms
  6. 8. the loss or removal of nitrogen or nitrogen compounds
  7. 9. the process by which water vapour in the air is changed into liquid water
  8. 11. a mineral that makes up 1% of a person's total body weight
  9. 13. to make fertilisers
  10. 16. regulate the Earth's temperature