ecology

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Across
  1. 2. To put something new instead
  2. 4. Place for recycling
  3. 8. The natural world
  4. 10. To use less
  5. 12. Exchange things
  6. 13. To support or help
  7. 15. To process materials to use again
  8. 18. Fruit/vegetable skin
  9. 19. Amount of something
  10. 20. Materials around products
Down
  1. 1. Too much, unnecessary
  2. 3. Environmental action plan
  3. 5. To wash with water
  4. 6. Natural home of animals
  5. 7. Break down naturally
  6. 9. Turn electricity off
  7. 11. Escape quickly
  8. 14. To make something less
  9. 16. Power from electricity or fuel
  10. 17. The use of resources