Pollution

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Across
  1. 4. To cause damage or hurt
  2. 6. To ignite something
  3. 7. Poisonous
  4. 9. Made from burning a substance
  5. 10. To emit something e.g. gas
  6. 13. An amount of gas or vapour that smells or is dangerous to inhale
  7. 14. Where waste ends up
  8. 16. A synthetic (man made) material
  9. 17. To break or destroy something
  10. 18. Another word for dirty
Down
  1. 1. Things that cause us trouble
  2. 2. Left over/unused/unwanted
  3. 3. Stuff you throw away
  4. 5. Harmful to animals and humans
  5. 8. A substance which has harmful to environment
  6. 9. Human waste
  7. 11. Another name for landfill
  8. 12. Weather conditions
  9. 15. Solid, liquid, ______
  10. 18. Used to run cars