Soil Question
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The table shows descriptions of the five major soil horizons in the wrong order.
Which sequence shows the soil horizon descriptions in the correct order from ground surface down?
| Soil Horizons | |
|---|---|
| Horizon | Name |
| 1 | subsoil |
| 2 | humus |
| 3 | bedrock |
| 4 | topsoil |
| 5 | regolith |
Which sequence shows the soil horizon descriptions in the correct order from ground surface down?
- 4, 1, 2, 5, 3
- 5, 2, 4, 1, 3
- 4, 2, 1, 3, 5
- 2, 4, 1, 5, 3