Across
- 5. The top layer of Earth where plants grow
- 6. The mixture of gases we breathe
- 12. Using resources without harming future generations
- 16. All members of one species living in one area
- 17. A system where living and non-living things interact in an area
- 20. A disease caused by mercury pollution in Japan
- 21. The role an organism plays in its environment
- 22. The study of how living things interact with their environment
- 23. A situation where resources are limited
- 24. All human beings as a group
- 25. A long period with little or no rain
- 26. An oil company linked to major environmental oil spills
- 27. An element found in all living things and fossil fuels
Down
- 1. A major nuclear accident in Ukraine in 1986
- 2. Different populations living together in one area
- 3. Harmful substances added to the environment
- 4. A sudden event that causes serious environmental damage
- 7. Help given to people after a disaster
- 8. A nuclear disaster in Japan caused by an earthquake and tsunami
- 9. Related to living organisms in an environment
- 10. An international agreement to reduce greenhouse gases
- 11. Belief that nature should be protected for its own value
- 13. Belief that humans are the most important part of nature
- 14. A process where changes in nature increase or reduce effects
- 15. Belief that technology can solve environmental problems
- 18. Non-living parts of an environment like water or rocks
- 19. A natural resource essential for all life
- 21. A gas in the air that plants need to grow