Across
- 1. capable of causing injury or death
- 5. factories that manufacture goods
- 6. taking materials from old objects and making new
- 9. coal, oil and crude oil
- 12. The earth system that includes living things
- 13. area of land set aside for wildlife
Down
- 2. wise use of material and energy resources
- 3. The Earth system that includes all water
- 4. when a material is broken down
- 7. The presence of anything harmful in environments
- 8. The Earth system made of rocks, and soil
- 10. devices that remove dirt from smoke stacks
- 11. growing crops and raising livestock