Across
- 5. to meet the current needs of society without compromising the future.
- 6. clearing of forested land.
- 7. growing plants using a water-based nutrient solution
Down
- 1. raising fish in tanks with soilless plant culture
- 2. surroundings where a person lives
- 3. introduction of harmful materials into the environment
- 4. the art and science of growing crops