Across
- 9. A process by which microorganisms break down biodegradable material in the absence of oxygen (17)
- 10. Gas generated by the decomposition of organic materials in landfills (11)
- 11. The process of burning waste materials to reduce their volume and mass (11)
- 12. Liquid that drains or 'leaches' from a landfill (8)
- 13. Fine particles of ash produced during the combustion of coal (6)
Down
- 1. Waste that poses substantial or potential threats to public health or the environment (13)
- 2. The process of recycling organic waste into nutrient-rich soil (10)
- 3. An economic system aimed at eliminating waste and the continual use of resources (15)
- 4. Tiny plastic particles less than five millimeters in diameter (13)
- 5. A thermochemical decomposition of organic material at elevated temperatures in the absence of oxygen (9)
- 6. A process that converts organic matter into synthetic gas, electricity, and slag using plasma (17)
- 7. The cultivation of worms to decompose organic food waste (11)
- 8. The order of preference for action to reduce and manage waste (12)