Across
- 3. practice of cultivating crops and raising animals
- 5. system combining fish farming and hydroponic plant cultivation
- 6. essential liquid required for all known life
- 8. introduction of harmful substances into the environment
- 11. lifestyle that excludes all animal products
- 12. substances that provide nourishment for living organisms
- 13. refers to farming in stacked layers or levels
- 14. natural world and surroundings of living things
- 16. formal discussion involving opposing arguments
- 17. materials or assets used to produce goods and services
- 18. capacity to do work or produce change
Down
- 1. causing disagreement or public debate
- 2. able to be maintained long-term without exhausting resources
- 4. activity of growing crops or raising animals
- 7. changed or altered from an original state
- 8. essential nutrient needed for growth and repair
- 9. group of individuals of the same species in a given area
- 10. farm animals raised for food or other products
- 14. information or data used to support a claim
- 15. soil-free method of growing plants in nutrient-rich water