Photosynthesis

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Across
  1. 5. a group of atoms
  2. 8. an animal that eats meat
  3. 9. period of 100 years
  4. 10. empty (vide)
  5. 11. phénomène
  6. 12. to give
  7. 13. adjective of chemistry
  8. 15. the act of losing electrons
  9. 16. a series of different steps to complete an action/goal
  10. 17. the adjective of gas
  11. 20. synonym of artificial
  12. 22. place too much importance onto sth
  13. 23. a form of sugar
  14. 24. opposite of processed
Down
  1. 1. the act of keeping at sth
  2. 2. opposity of fast (adverb)
  3. 3. plants that live underwater
  4. 4. the act of gaining electrons
  5. 6. can be considered a wave and a particle
  6. 7. carbon ...
  7. 9. part in a plant in which photosynthesis takes place
  8. 14. to use or eat
  9. 18. a negatively charged subatomic particle
  10. 19. vanish (disparaitre)
  11. 21. an animal that eats plants