Pollution

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Across
  1. 2. man's best friend?
  2. 4. contaminated by microorganisms, parasitic worm eggs?
  3. 7. essential source of life?
  4. 8. What are the most polluting nature?
  5. 10. radon, a naturally produced by the decomposition of?
  6. 12. who protects nature?
  7. 14. who pollutes nature?
  8. 15. –pollution noise,vibration,electromagnetic fields?
  9. 16. those who breathe the toxic particles can fall ill?
Down
  1. 1. how to land store?
  2. 3. concentration and duration of exposure , has or can have adverse effects on humans and other living organisms?
  3. 5. chemical compounds and their mixtures, which are above a
  4. 6. as soil were being polluted?
  5. 9. The debris is not only disgusting to watch, but they?
  6. 11. researching materials and power, their properties and interactions?This is a large, multi-Deciduous or evergreen woody plant with a growing array called forests.
  7. 13. This is a large, multi-Deciduous or evergreen woody plant with a growing array called forests.