Crossword Puzzle

7. tendency of a pesticide to turn into a gas or vapor.
8. may have a soil of uniform color.
9. it is the definiton of a soil in which a mixture of mineral matter,organic,water and air.
10. include soils that have developed from similar materials by similar processes resulting in similar appearances and properties.
13. ability of a pesticide to remain present and active for a long time.
16. is an alternative agricultural system which originated early in the 20th century.
17. ability of a pesticide to dissolve in a solvent.
18. everything that surround us.
19. is the washing or blowing away of the top layer of the soil.
22. is the point in time at which a catastrophic event is completed.
23. it is the definitionof a soil in which a material that nourishes and supports growing plants.
24. can carry pesticides into aquatic environments.
25. these are layers of soil.
27. it is other term used for r horizon.
28. reffered to as topsoil.

1. these refer to those soil that have experienced intense weathering of parent material.
2. it refers to rainfall and temperature.
3. it is other term used for b horizons.
4. may indicate a high organic matter which may lead to easier cultivation and higher nutrient content.
5. are chemical preparation used to kill animal pests.
6. the materials underlying the soil and from which the soil developed.
10. it is the vertical display of soil horizons.
11. it is the main biotic factor.
12. building of chemicals to soil particles.
14. the removal of trees to create room for cities and farming.
15. is the practice used in the agricultural fields where we harvest and cultivate only one type of crop in a particular place.
20. is a 3d unit that represents the entire soil body.
21. it is the other term used for a horizon.
25. can suggest soil properties that may influence plants.
26. is the unwanted plant that grows in an agricultural field. Environment, everything that surround us.