Across
- 2. a typically biting insect
- 5. breaking down rock
- 7. of or relating to sediment
- 10. how rich is the soil
- 12. how big an objects particles are
- 13. plowing on the edges
- 15. a rock cooled from and magma
- 18. scanning Earth by satellite
- 20. growing different crops
Down
- 1. most outer layer of Earth
- 3. how much acid soil has in it
- 4. when crystals form
- 6. breaking
- 8. term referring to vegetation
- 9. how an object feels
- 11. position of steward
- 13. plowing on the contours
- 14. input and output of nutrients
- 16. causing to undergo
- 17. transformed or undergone by heat
- 19. removing rock particles