Across
- 2. a long term shift in weather patterns and temperature
- 3. the introduction of harmful materials to the environment
- 4. designed to be used once or a limited number of times
- 6. a natural resource such as solar energy that can never be used up
- 8. the clearing or thinning of forests by humans
- 10. the complete disappearance of a species
Down
- 1. the process where heat is trapped near the Earth's surface
- 5. the process where vegetation in drylands decreases and eventually disappears
- 7. the variety of all living things
- 9. the ability to meet current needs without harming the needs of future generations