Across
- 1. 지구의
- 4. the set of relationship existing between organisms and their environment
- 6. 야생
- 8. 계속하다
- 9. the protection of natural things such as animals, plants, forests, etc.
- 10. able to continue without causing damage to the environment
- 11. 환경
- 12. 효율적인
- 13. 물질
- 14. 숲
Down
- 2. the existence of many differnet kinds of plants and animals in an environment
- 3. substances that pollute the environment
- 5. 중대한, 중요한
- 7. the place or type of place where a plant or animals naturally lives or grows
- 9. to make a place or substance dirty or harmful by putting something