Environmental Chemistry Review

123456789101112131415161718192021222324
Across
  1. 2. _____________ nutrients are carbon-based compounds such as carbohydrates, proteins, lipids and vitamins
  2. 7. Minerals that we need 100mg/day of or more
  3. 10. The increase in concentration as toxins move up in the food chain
  4. 14. ________________ nutrients are also known as minerals
  5. 15. A substance that causes no change to litmus paper
  6. 17. Molecules that help regulate the chemical reactions in living organisms
  7. 19. Have a pH between 0 and 6.9
  8. 20. The use of living organisms to control or remove the presence of pollutants from the environment
  9. 22. An insecticide originally used in WWII for malaria control
  10. 23. The first element listed in the numbers on a bag of fertilizer
  11. 24. The element in a fertilizer that protects against disease
Down
  1. 1. Provide energy for metabolism
  2. 3. mg/kg
  3. 4. Organisms whose presence or absence gives clues as to the amount of pollution affecting an ecosystem
  4. 5. Acid Precipitation occurs when ____________ and nitrates combine with moisture in the air to produce rain or snow with lower than normal pH
  5. 6. Waste that breaks down slowly or not at all
  6. 8. Storage for unused energy
  7. 9. A pesticide that targets weeds
  8. 11. When we combine an acid and a base in order to create water and salt
  9. 12. ____________ toxicity occurs when symptoms develop after just one exposure
  10. 13. Structural molecules for the body
  11. 15. Compounds or elements that are essential for production of the organic matter that makes up living organisms
  12. 16. Essential components of enzymes and vitamins
  13. 18. The dose of a substance needed to kill 50 percent of the population it is applied to
  14. 20. Form OH- ions in a solution
  15. 21. An element that is part of the thyroid hormone