Across
- 5. thestateorprocessofrottingordecay.
- 7. make(vegetablematterormanure)into...
- 9. plowing along the contours of the land
- 11. showsthedifferentsoiltextures
- 12. wearawayorchangetheappearanceortexture
- 13. themostrecentsoil
- 15. helpstogrowcrops
Down
- 1. theprocessof...
- 2. theorganiccomponentofsoil,formedbythedecompositionofleavesandotherplantmaterialbysoilmicroorganisms.
- 3. asubstanceturnover
- 4. pH ...isdefinedasthenegativelogarithm
- 6. ...isthegeologicmaterialfromwhichsoilhorizonsform
- 8. ...ismatterthathascomefromarecentlylivingorganism.
- 10. stripstopreventsoilerosion
- 14. make or form (sloping land) into a number of level flat areas