Waste crossword

12345678910
Across
  1. 3. A process to convert used items into new materials.
  2. 7. Waste that poses a risk to health or the environment.
  3. 8. To burn waste material at high temperatures.
  4. 10. Unwanted material or refuse.
Down
  1. 1. Contamination of the environment by harmful substances.
  2. 2. An underground system for carrying away wastewater.
  3. 4. Discarded items or refuse.
  4. 5. Food scraps and other household refuse.
  5. 6. A designated area for burying unwanted materials.
  6. 9. Organic matter used to enrich soil.