Across
- 6. anotehr word for dirt
- 7. system brings H2O to the surface
- 8. black materials, cleans H20
- 9. chemicals that are toxic to humans
- 10. applied to farm crops
Down
- 1. what doesn't work in a test
- 2. growing crops/raising livestock
- 3. another word for contamination
- 4. freshwater under the earth
- 5. farmland in California
- 7. animals produce this