Across
- 2. a car, a plane, a ship, etc.
- 5. poor people
- 8. can be broken down naturally
- 10. keep it up, don't let it degrade
- 11. good for something
- 12. something that needs to be done right away
- 13. nutrient-rich soil
- 17. letting your livestock eat too much in the same spot
- 18. something that goes away once it has been used
Down
- 1. get something back
- 3. someone who comes from another country
- 4. the act of making something dirty
- 6. make a problem worse
- 7. a different angle, or point of view
- 9. cutting down trees causes...
- 14. taking too much fish from the ocean
- 15. keep something (safe, intact) for later
- 16. can be thrown away