Environmental Chemistry Crossword

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Across
  1. 4. a substance with a low pH
  2. 7. rain caused by chemicals going into clouds turning into rain.
  3. 9. a mixture of plant compounds extracted from certain lichens
  4. 10. component of an antioxidant enzyme that helps prevent decay of cell function
  5. 11. stuff added to plants to make them grow faster
  6. 12. crucial part of red blood cells that regulate oxygen transport
  7. 13. is done by releasing powdered calcium carbonate from aircraft.
  8. 15. fuel made from the remains of swamp vegetation.
  9. 16. a disease caused by lice.
  10. 18. a child hood disease associated with a low protein diet
  11. 20. a disease resulting from a lack of vitamin C
  12. 21. a major component of thyroid hormones which regulate metabolism
  13. 22. a chemical used to control pests
  14. 24. a place where many organisms have the same food source.
Down
  1. 1. a substance that absorbs oxides
  2. 2. a substance with a high pH
  3. 3. German word that means strength
  4. 5. research on acid precipitation
  5. 6. concentration of DDT going up the food chain
  6. 8. helps regulate nerve signals and muscle activity involved in protein formation required regulate the acid base balance.
  7. 14. a swelling of the thyroid gland at the base of the neck
  8. 17. latin word that means poison
  9. 19. a chemical that changes colour to indicate whether a substance is an acid or base
  10. 23. dichlorodiphenyltrichloroethane