Across
- 1. Effect The trapping of heat in the Earth's atmosphere.
- 3. To convert waste into reusable materials.
- 8. The process of cutting down forests.
- 10. A community of living organisms and their environment.
- 12. Harmful substances released into the environment.
- 13. The variety of life forms in an ecosystem.
- 14. A person who advocates for the protection and preservation of the environment.
- 15. Protecting and preserving natural resources.
Down
- 2. The surroundings in which organisms live.
- 4. Change Long-term changes in Earth's weather patterns.
- 5. Species Species at risk of becoming extinct.
- 6. Energy Energy from sources that can be replenished naturally.
- 7. The place where a particular species lives.
- 9. Layer A region of the Earth's stratosphere that contains a high concentration of ozone.
- 11. A substance that causes pollution.