Ella and Pat's Crossword

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Across
  1. 2. poisons, materials, wastes, gases
  2. 4. a substance used in or produced by a chemical process
  3. 7. something that could be bought or sold
  4. 8. cycle the process by which water on the earth evaporates
  5. 10. particles of earth,clay,or sand that eventually settle water.
  6. 11. having to do with the sea; living in or caused by the sea.
  7. 14. to make something dirty, polluted or unusable
  8. 15. a natural environment of a living thing
  9. 17. a waste substance that makes air or water unhealthy
Down
  1. 1. blooms organisms that live mainly in the water and make their food through photosynthesis.
  2. 3. everything that surrounds a particular type of living thing
  3. 5. a substance that can kill unwanted plants
  4. 6. water or waste materials
  5. 9. harm, loss, ruin, tragic
  6. 12. a small amount of something or piece of something
  7. 13. to interrupt or interfere
  8. 16. a natural substance added to dirt to make it better for growing plants