Stems Crossword Puzzle

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Across
  1. 3. the art of making or the manufacture and use of fireworks
  2. 7. a tropism in which light is the orienting stimulus
  3. 10. the destruction of large areas of the natural environment as a consequence of human activity
  4. 11. a person who seeks wisdom or enlightenment
  5. 12. a person who has an uncontrollable impulse to start fires
  6. 14. the mass slaughter of European civilians and especially Jews by the Nazis during World War II
Down
  1. 1. By studying the skin's ecosystem, ecobiologists aim to develop sustainable and effective skincare solutions.
  2. 2. a mania (see mania sense 2a) for great or grandiose performance
  3. 4. a lover of books especially for qualities of format
  4. 5. a new convert
  5. 6. pronounced and usually negative photoaxis or phototropism
  6. 8. a cone-shaped device used to intensify or direct the voice
  7. 9. represented on a coat of arms in a lying position with the head on the forepaws
  8. 13. capable of destroying or eating away by chemical action
  9. 15. a saprophytic organism