1. Agriscience Unit 15 worksheet.

2. 1. What land classes can be farmed year after year with little conservation treatments?

4. 2. The cycling of water between water sources, and surfaces areas of the earth is called the:

6. 3. Jane has examine a soil and discover that it has a single-grained structure. Which soil is she most likely looking at?

8. 4. Why is water known as the universal solvent?

10. 5. What is the best description for no-till as a cropping system?

12. 6. What is a career that requires a minimum of 4 years of college to do research on a wildlife habitat

14. 7. Why is evaporation important in the water cycle?

16. 8. If planting trees is the most intensive recommended land treatment, the likely land class is:

18. 9. The land class that allows the most intensive use with the fewest limitations is:

20. 10. Why is capillary water an important source of groundwater?

22. 11. If a soil pH level is 5. 6 and needs to be raised to 7
11. If a soil pH level is 5.6 and needs to be raised to 7.0 what amendment is best incorporated into the soil?

24. 12. Spaces between soil particles permit root penetration and store air, water and nutrients are called:

26. 13. Permeability is the rate of movement of what through the soil?

28. 14. What is a career that can be performed with less than 4 years of college and focuses on collecting soil samples?

30. The tendency of soil particles to cluster together and function as soil units or aggregates is ca

32. 16. The smallest soil particle is:

34. 17. An individual who classifies soil according to the most appropriate use for farming is a:

36. 18. What is the best use of a soil tube?

38. 19. Saturation often occurs after a short period of heavy rain
19. Saturation often occurs after a short period of heavy rain. Why is that important?

40. 20. What is true of the particle size of sandy soils?

42. 21. A career as a wildlife biologist is most likely in the field of:

44. 22. Why is precipitation important in the water cycle?

46. 23. The top or surface layer of soil in a soil profile is the:

48. 24. The minimum level of education required for a soil scientist is a: