Environmental Chemistry Crossword

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Across
  1. 2. They attack and eat our food crops
  2. 7. DDT
  3. 10. DDT is_______as it moves up the food chain
  4. 12. Helps hydrocarbons combust better and release less pollution
  5. 13. Foods produced without chemical fertilizers, genetic modification,etc
  6. 14. Litmus at pH 6-8
  7. 15. The concentration of pesticides in higher levels of the food chain
Down
  1. 1. Pests can become________to pesticides
  2. 3. Papers with a combo of indicators to give a colour range that matches a pH range
  3. 4. A neutralization reaction that uses lime
  4. 5. Calcium carbonate
  5. 6. Red litmus to blue
  6. 7. Invented by Paul Hermann Muller
  7. 8. The reaction between an acid and a base
  8. 9. The pollutants from smokestacks and vehicle exhaust
  9. 11. Causes buildings and statues to corrode
  10. 16. Blue litmus to red
  11. 17. Most food chains consist of_____trophic levels