Across
- 1. The animal at the top of the food chain
- 4. Cutting down trees
- 7. Gas responsible for the greenhouse effect
- 8. Animals that eat plants
- 9. A diagram showing energy flow in an ecosystem
- 12. A group of interacting species and their physical environment
- 13. Area where an organicism lives
- 15. The process of water changing from liquid to vapor.
- 16. A system of interacting living and non-living components
Down
- 2. The layer of gases surrounding the Earth
- 3. Process of converting sunlight into chemical energy
- 5. Plants grow in this
- 6. The variety of life in the world or a particular habitat
- 10. Trees and plants make this gas
- 11. A resource that can regenerate quickly
- 14. A plant that makes its own food