Across
- 2. a large amount of water covering an area that is usually dry
- 5. a very big fire that spreads quickly and burns natural areas like woods, forests and grassland
- 6. the fact of a country or city having too many people living in it
- 7. catching too many fish in an area of the sea, so that there are not many fish left there
- 9. the process or fact of making a substance or place dirty or no longer pure by adding a substance that is dangerous or carries disease
- 12. a situation in which a plant, an animal, a way of life, etc. stops existing
- 14. not completely necessary
- 15. the process by which the surface of something is gradually destroyed through the action of wind, rain, etc.
- 16. the change or process of changing from a solid substance to a liquid
- 18. a sudden, violent shaking of the earth’s surface
- 19. any material that produces heat or power, usually when it is burnt
Down
- 1. damage caused to water, air, etc. by harmful substances or waste
- 3. the cutting down of trees in a large area, or the destruction of forests by people
- 4. a violent storm with very strong winds, especially in the western Atlantic Ocean
- 8. the act of putting somebody/something in a situation in which they could be harmed or damaged
- 10. a long period of time when there is little or no rain
- 11. the act of destroying something; the process of being destroyed
- 13. the vehicles that are on a road at a particular time
- 17. used water and waste substances that are produced by human bodies, that are carried away from houses and factories through special pipes