Across
- 4. is a result of ice caps melting
- 7. when lots of organisms depend on each other to survive
- 9. a mega city in england
- 10. the ability to be maintained at a certain rate or level
Down
- 1. we are running out of these
- 2. a place in Nigeria
- 3. carbon monoxide being released into the air
- 5. a large city with often a larger population then 10 million
- 6. lack of fairness or justice
- 8. a low residential area