Across
- 2. to keep safe from injury , harm or destruction
- 5. The act or process of establishing a forest especially on land not previously forested
- 8. a large number of water covering an area that is usually dry
- 9. to use something again
- 11. variety of plants and animal species in an environment
Down
- 1. The act of cutting down or burning trees in an area
- 3. To watch and help an animal or the environment
- 4. something making land , water or sky dirty
- 6. An area of land where large amounts of waste material are buried under the Earth
- 7. To treat things that have already been used so they can be used again
- 10. To make less rubbish