Across
- 8. Study of relationships between organisms and their environment
- 9. Group of similar organisms capable of reproduction
- 11. Natural home of a plant or animal
- 12. Grown or produced without synthetic chemicals
- 14. Variety of life in a particular ecosystem
- 15. Keeping something in its original or existing state
- 19. Element associated with fossil fuels and emissions
- 20. Action to reduce severity of environmental impact
- 21. At risk of extinction
- 22. Community of organisms and their physical environment
- 24. Surroundings or conditions in which living things exist
- 26. Contamination of air, water, or soil
- 27. Returning something to its former condition
- 28. Existing in or caused by nature
Down
- 1. Structure or effect that traps heat
- 2. Meeting present needs without harming future generations
- 3. Capable of being maintained over time
- 4. Decline in quality of land, water, or air
- 5. Presence of harmful substances in the environment
- 6. Use resources wisely to avoid waste
- 7. Clearing of forests for other land uses
- 10. Long-term weather patterns in a region
- 13. Measure of environmental impact
- 16. Natural materials used for economic gain
- 17. Protection and preservation of natural resources
- 18. Adjustment to environmental changes
- 23. Resource that can be replenished naturally
- 24. Release of gases or substances into the air
- 25. Animals living in their natural environment
- 27. Reprocessing materials to make new products