Environmental Chemistry

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Across
  1. 1. not a good measure of water quality
  2. 6. fertilizer runoff adds to water
  3. 8. lacking backbone
  4. 10. species to indicate environmental change
  5. 11. bug killer
  6. 12. amount of O2 in water
Down
  1. 2. pH less than 7
  2. 3. factor affecting DO
  3. 4. measure of water health
  4. 5. toxic in small quantities
  5. 6. measures quantities
  6. 7. mix acid and base
  7. 9. microbiological indicator
  8. 10. pH more than 7