Across
- 2. a place where rubbish is buried:
- 5. able to be recharged
- 7. decaying plant material that is added to soil to improve its quality
Down
- 1. a device for burning things that are no longer wanted
- 3. damage caused to water, air, etc. by harmful substances or waste
- 4. unwanted matter or material of any type, especially what is left after useful substances or parts have been removed
- 5. to put a material that has been used through another industrial process to change it so that it can be used again
- 6. to collect and treat rubbish in order to produce useful materials that can be used again