Acting green 1 Advanced

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Across
  1. 7. not dirty, tidy
  2. 8. danger, something that can cause harm
  3. 10. dirty or harmful substances in air/water
  4. 11. helpful, practical
  5. 14. to make smaller, to decrease
  6. 15. trash, garbage, rubbish
  7. 16. every day
Down
  1. 1. a glass building where plants grow
  2. 2. water that falls from the sky
  3. 3. to clean by removing dirt
  4. 4. to talk about something
  5. 5. to do something, to take action
  6. 6. to make a paper copy
  7. 9. a group of things gathered together
  8. 12. to wash yourself with water
  9. 13. system that makes a room warm