Across
- 3. What is the process of turning waste into new products called?
- 7. What gas do plants need for photosynthesis?
- 9. What toxic gas is produced by incomplete combustion from vehicles?
- 12. What is the coastal ecosystem filled with mangrove trees called?
- 13. What is the layer of air that protects the Earth from solar radiation?
- 15. What is the large hole in the ozone layer called?
- 16. What is the large-scale removal of trees that results in permanent forest loss?
- 18. What is the movement of replanting forests called?
- 19. What is illegal logging called?
- 20. What is water pollution caused by industrial waste called?
Down
- 1. What is the science that studies relationships between living organisms and their environment called?
- 2. What is energy from sunlight called?
- 4. What is long-term climate change caused by human activities called?
- 5. What is the abbreviation for a final waste disposal site?
- 6. What is the process of turning organic waste into natural fertilizer called?
- 8. What is the unusual warming of Pacific Ocean surface temperatures called?
- 10. What are animals or plants that are nearly extinct called?
- 11. What is a forest located in tropical regions called?
- 14. What chemical substance that damages the ozone layer was commonly used in old air conditioners called?
- 17. Which gas mostly causes global warming?