Across
- 4. process of turning sunlight into food
- 5. action of clearing trees
- 8. total mass of organisms in a given area
- 10. energy produced from water
- 12. supplying water to crops
- 13. interaction between two organisms for survival
- 14. variety of life within an ecosystem
Down
- 1. a violent shaking that occurs on land
- 2. when something is spread on an international scale
- 3. the gradual destruction of land
- 6. a period of time characterized by climate
- 7. relating to agriculture
- 9. avoidance of ecological depletion
- 11. Changes over multiple generations