Across
- 1. a community of living organisms
- 4. growing crops
- 7. a harmful substance in the environment
- 8. weather
- 9. a source of supply
- 11. to move from one place to another
Down
- 2. the natural world
- 3. removal of forests
- 5. all of the people born and living at about the same time
- 6. society's ability to exist and develop without depleting the natural resources necessary to live in the future.
- 10. lack of water