PLANT KINGDOM

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Across
  1. 3. a gas taken in by plants
  2. 8. this is the stem of the tree
  3. 9. a gas given out by plants
  4. 10. by this process plants manufacture their food
Down
  1. 1. tallest trees in the world
  2. 2. this is an example of an evergreen tree
  3. 4. trees that lose their leaves in autumn
  4. 5. this is the study of life
  5. 6. a scientist who studies plants
  6. 7. the green pigment found in plants that give it the green colour