Nature Navigators Crossword

12345678910111213141516171819
Across
  1. 2. Made worse or intensified by the addition of something else.
  2. 3. To break down or deteriorate over time.
  3. 5. Harmful substances in the environment that can cause damage.
  4. 8. A specific level or point at which something begins or changes.
  5. 9. Having no end or boundaries; infinite.
  6. 11. To serve as a typical example of something.
  7. 13. To gather or collect over time.
  8. 14. A person or thing responsible for a problem or crime.
  9. 15. The capacity or power to have an effect on someone or something.
  10. 16. The process of producing offspring.
  11. 19. These are chemicals that degrade slowly and accumulate in the body.
Down
  1. 1. Easily influenced or harmed by a particular thing.
  2. 4. To accumulate or build up gradually over time.
  3. 6. The highest point or part; the top.
  4. 7. To return to a normal state or condition after a period of difficulty
  5. 10. A major role player in the level of pollutants, rather than location.
  6. 12. To hinder or obstruct progress or movement.
  7. 17. An animal that is hunted and killed for food by another animal.
  8. 18. To interrupt or cause disorder in a process or system.