| novice soil types and characteristics | 0.55 | 0.7 | 8293 | 37 | 6 |
| novice soil science basics | 0.78 | 0.7 | 3850 | 26 | 2 |
| novice soil management guide | 1.79 | 0.7 | 4337 | 28 | 64 |
| soil types and characteristics | 1.34 | 1 | 2382 | 30 | 25 |
| types of soil and their characteristics | 0.93 | 0.6 | 8892 | 39 | 88 |
| characteristics of soil types | 1.7 | 0.4 | 4720 | 29 | 30 |
| novice soil improvement methods | 1.8 | 0.1 | 5243 | 31 | 15 |
| characteristics of different types of soil | 0.82 | 0.6 | 5979 | 42 | 83 |
| novice soil quality indicators | 1.13 | 0.8 | 9923 | 30 | 5 |
| characteristics of good soil | 0.59 | 0.5 | 5005 | 28 | 74 |
| soil types and properties | 0.55 | 0.3 | 5381 | 25 | 53 |
| what are soil characteristics | 1.67 | 0.2 | 6743 | 29 | 64 |
| novice soil conservation practices | 0.41 | 0.4 | 9676 | 34 | 10 |
