#13

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Across
  1. 1. Underground parts of a plant
  2. 3. Grassy plain in tropical regions
  3. 4. Long narrow hilltop
  4. 5. Region above the earth’s surface
  5. 7. Natural light from the sun
  6. 9. Mountain that erupts lava
  7. 10. Small bushy plant
  8. 11. Coral or rock structure in shallow sea
  9. 13. Low land between hills
  10. 15. Young shoot or growth
  11. 17. Fluid in plants
  12. 19. Large black bird
  13. 20. Tall plant with a trunk
  14. 22. Wetland with trees
  15. 24. Amount of precipitation
  16. 25. Rising and falling sea level
Down
  1. 1. Thorny flowering plant
  2. 2. Covered with or containing sand
  3. 5. Frozen water crystals falling from clouds
  4. 6. Evergreen coniferous tree
  5. 7. Earth material for plant growth
  6. 8. Large sea wave caused by an earthquake
  7. 11. Natural flowing watercourse
  8. 12. Plant’s reproductive units
  9. 14. Violent weather with wind and rain
  10. 15. Small flowing body of water
  11. 16. Small smooth stone
  12. 18. Small body of still water
  13. 21. Common mineral in the earth’s crust
  14. 23. Fine powder from flowers