Across
- 4. The act of cutting down or burning trees in a area
- 5. To treat things that have already been used so they can be used again.
- 7. To use something again
- 9. To make less rubbish
Down
- 1. Something making land, water or sky dirty
- 2. A large amount of water covering an area that is usually dry
- 3. To watch and help an animal or the environment.
- 6. An area of land where large amounts of waste material are buried under the earth.
- 8. To keep safe from injury, harm, or destruction.