Pollution/Conservation

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Across
  1. 1. decayed
  2. 4. waste potentially harmful to the environment
  3. 6. to use less
  4. 7. use once
  5. 10. harmful material
  6. 11. again
  7. 13. Waste cleaning supplies
Down
  1. 1. protecting the environment
  2. 2. pollution substances are introduced to water
  3. 3. burying it and covering over it with soil
  4. 5. make them into new items
  5. 8. pollution gathered in landfills
  6. 9. break down in the environment
  7. 12. material largest component of garbage