| Definition |
 |
|
| Vocab Word |
|
|
| The decayed remains of dead plants and animals in soil. |
Humus |
| The layer of bits of rocks and humus found on Earth's crust. |
Soil |
| A type of soil with very small grains and small spaces between them. |
Clay |
| The top layer of soil. |
Topsoil |
| Rich soil with lots of humus. |
Loam |
| A material found in nature that living things use. |
Resource |
| Saving resources by using them carefully. |
Conservation |
| Planting strips of different crops next to each other. |
Strip Cropping |
| Planting rows of crops around hills instead of up and down their sides. |
Contour Plowing |
Biology Lab Midterm
