Plant Kingdom

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Across
  1. 2. green pigment found in the plants.
  2. 4. _____ produce most of world's oxygen.
  3. 7. the washing or blowing away of top layer of soil.
  4. 8. stems of some of these become hard and woody when they grow old.
  5. 9. a combination of living and non living things.
  6. 11. trees that remain green in all seasons.
  7. 12. these are big tall and strong plants
  8. 15. Plants provide us with food and _____.
  9. 17. process by which plants prepare food.
  10. 20. climbers are used for this purpose due to their structure.
  11. 24. these trees lose their leaves in autumn
  12. 25. example of evergreen tree.
Down
  1. 1. a scientist who studies plants
  2. 2. these are often used to cover walls.
  3. 3. example of shrub
  4. 5. the age of the plant can be determined by this.
  5. 6. plants absorb this from the air while making food.
  6. 10. climbers use this to climb.
  7. 12. the stem of the trees is called
  8. 13. a medicinal herb.
  9. 14. branch of biology that deals with plants.
  10. 16. they are source of fuel and lumber.
  11. 18. aquatic plants serve as ___ grounds.
  12. 19. outer covering of the trunk is called this.
  13. 21. the tallest trees in the world.
  14. 22. plants that live in and around water.
  15. 23. season in which deciduous trees lose leaves.