Across
- 2. A community of living organisms and their nonliving environment.
- 5. The natural home of an organism.
- 6. Change A long-term shift in global or regional climate patterns.
- 7. Facing a high risk of extinction.
- 9. The variety of life on Earth.
- 10. The introduction of harmful substances into the environment.
Down
- 1. Meeting present needs without compromising future generations.
- 3. Protecting and preserving the environment.
- 4. Gas A gas that traps heat in the atmosphere.
- 8. Clearing forests and converting land to other uses.