Across
- 3. to keep safe from injury harm or destruction
- 4. a green pigment which is responsible for to provide energy for photosynthesis
- 6. an area of land where large amounts of waste material are buried under the earth
- 7. to use something again
- 9. the act of cutting down or burning the trees in area
Down
- 1. a large amount of water covering an area that is usually dry
- 2. to treat things that have already been used so they can be used again
- 5. something which makes land ,water or sky dirty
- 8. to watch and help or the environment