Across
- 2. to make less rubbish
- 5. all the plants and animals in an area and the way they affect each other and the environment
- 6. to treat things that have already been used so they can be used again
- 7. the natural environment in which a plant or an animal lives
- 9. the variety of plants and animals in a particular area
Down
- 1. the act of cutting down or burning trees in an area
- 3. to keep safe from harm, destruction
- 4. changes in the world's weather, especially an increase in temperature
- 6. to use something again
- 8. animals and plants that grow in natural conditions