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Soil
Unit B Chapter 2
| Term | Definition |
|---|---|
| erosion | The movement of bits of rock or soil by wind and water. |
| strip cropping | Planting a crop between rows of another crop. |
| contour plowing | Plowing around a hill. |
| terracing | Cutting broad, flat areas in sides of a steep mountain to grow crops. |
| weathering | The natural process of breaking down rock. |
| fertile | Soil capable of growing a lot of plants. |
| soil conservation | Saving of soil. |
| humus | The soil part that is made up of rotting plant and animal materials. |
| topsoil | This part of soil becomes richer as dead plants decay. |