Across
- 4. plants get this from decaying organic material
- 9. permanently frozen ground is found in this region
- 10. a soil ________ shows all layers of soil
- 13. layer of frozen ground in arctic
- 14. when soil is destroyed by over watering
- 17. maple, oak and birch are examples of this tree
Down
- 1. trees that conduct photosynthesis all year
- 2. layers of soil are called this
- 3. Process that breaks down rocks and minerals
- 5. B Horizon with some minerals and nutrients
- 6. decaying organic materials form this
- 7. C Horizon is formed of this material
- 8. thawed layer of permafrost where plants grow
- 11. water moves downward into lower soil horizons
- 12. this action brings water/minerals to surface bedrock solid rock/crust at bottom of soil profile
- 15. soil layer under humus, dark brown
- 16. a well balanced mix of nutrients, clay/sand/soil