Across
- 5. Floodwaters contains this which makes it thick and brown.
- 7. Where people from cities and towns dump all their garbage in big pits.
- 9. Where people cut down trees.
- 11. A cute bear-like animal which lives in Australia and eats eucalyptus leaves.
- 13. The present state of the atmosphere - temperature, cloudiness, pressure etc.
- 14. When rain mixes with air polution this is formed.
- 17. The kind of things that do not need water, food or air.
- 18. When someone starts a fire on purpose.
- 19. Plants give us this substance to breathe.
- 20. Too little water.
- 21. The movement of sediments by wind or water.
Down
- 1. The main cause of forest fires.
- 2. Too much water.
- 3. A cause of some forest fires.
- 4. A kind of plant parasite that lives on trees.
- 6. The typical weather for a given area over a long time.
- 8. Trash that is not thrown into garbage bins.
- 10. A tree found in Australia that contains a lot of oil that burns easily.
- 11. An animal which only lives in Australia and can jump very high.
- 12. Animals that can make big changes to their environments.
- 15. The process by which human waste cause destruction to the environment.
- 16. Another name for "hazy weather".