environment

3. Which gas mostly causes global warming?
6. What is the coastal ecosystem filled with mangrove trees called?
7. What is water pollution caused by industrial waste called?
8. monoxide What is the science that studies relationships between living organisms and their environment called?
10. What is the abbreviation for a final waste disposal site?
12. dioxide What are protected marine areas established to preserve ocean ecosystems called?
14. What chemical substance that damages the ozone layer was commonly used in old air conditioners called?
16. What is the layer of air that protects the Earth from solar radiation?
18. logging What is a forest located in tropical regions called?
19. What is the process of turning waste into new products called?

1. What is the movement of replanting forests called?
2. hole What is illegal logging called?
4. What toxic gas is produced by incomplete combustion from vehicles?
5. What are animals or plants that are nearly extinct called?
9. What is long-term climate change caused by human activities called?
10. dioxide What is the process of turning organic waste into natural fertilizer called?
11. Niño What is the unusual warming of Pacific Ocean surface temperatures called?
13. warming What gas do plants need for photosynthesis?
15. What is energy from sunlight callecalled
17. What is the large hole in the ozone layer called?