Unit 9: Life, Light, and Love

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Across
  1. 3. a person who loves or collects books
  2. 7. a tiny particle of light or electromagnetic radiation
  3. 8. the art or practice of taking and processing photographs
  4. 9. capable of being decomposed
  5. 10. your personal beliefs or opinions related to life
Down
  1. 1. the study of life
  2. 2. an account of someone's life written by someone else.
  3. 4. one who makes an active effort to promote human welfare
  4. 5. process by which green plants and certain other organisms transform light energy into chemical energy
  5. 6. "The City of Brotherly Love.”