Environmental protection

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Across
  1. 2. to hurt someone or damage something
  2. 5. waste material or things that are no longer wanted or needed so we throw them away
  3. 7. unwanted matter or material of any type, especially what is left after use
  4. 8. to have an amount of something inside or within it
  5. 9. food remaining after a meal
  6. 11. to make something less in size, amount, degree, importance, or price
Down
  1. 1. decaying material of plants, unwanted food, etc., added to dirt to improve the growth of new plants
  2. 3. a large container for rubbish
  3. 4. damage caused to water, air, etc. by harmful substances or waste
  4. 6. to sort and collect rubbish in order to treat it and produce useful materials that can be used again
  5. 10. to use something again