Across
- 2. it’s made from trees
- 4. is a organism eaten by another organism
- 8. is a polluted percipitation
- 10. is a planned managment of natural resources to prevent waste
- 11. both organisms benefit
Down
- 1. is to use again
- 3. that eat remains of dead organisms
- 5. is to use less
- 6. capable of causing harm or death
- 7. only one organism benefits
- 9. resources are raw materials supplied by nature
- 12. is polluted by smoke and echaust fumes