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Soils
science
| Question | Answer |
|---|---|
| Layer of solid rock under soil | bedrock |
| Richest layer of soil | top soil |
| Made up of once living things | humus |
| Soil made up of humus and small and large grains | loam |
| Soil that hold water easily due to its small grains | clay |
| Using resources carefully in order to preserve the | conservation |
| Material found in nature that living thins use | resourse |
| The middle layer of soil; under topsoil | subsoil |
| Three types of this are: sand, clay and loam | soil |
| Planting thick grass between rows of other crops | strip cropping |
| This is used so that soil will not be washed away | contour plowing |
| A type of soil made up of large grains that doesn't hold water easily | samd |