Across
- 4. the natural world
- 6. long-term shifts in temperatures and weather patterns
- 8. clearing up forested land
- 10. the use of energy
Down
- 1. introduction of contaminants into the natural environment
- 2. a person protects the environment
- 3. to support or strengthen
- 5. philosophy that involves the sustainable use of natural resources to benefit animals and people
- 7. a biological community of interacting organisms and their physical environment.
- 9. relating to the whole world
