Arabian Desert

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Across
  1. 6. A long leaf with many small pieces like a fern
  2. 7. Factories where oil is processed, ready for sale
  3. 9. Able to produce plant life
  4. 12. Process of removing salt from sea water
  5. 13. Lines that never touch but keep an equal distant apart
  6. 15. Poison made by animals
  7. 17. Wide, flat areas of high land
  8. 18. Makes dirty
Down
  1. 1. Smooth body shape that cuts easily through air, water or sand
  2. 2. Animal droppings
  3. 3. When an animal makes a long journey to breed and feed
  4. 4. Narrow piece of land jutting out into the sea
  5. 5. Money and other goods that a bride presents to a groom
  6. 8. Died out forever
  7. 10. Shallow holes
  8. 11. Scientists who study the earth and rocks
  9. 14. Natural or artificial lakes used for collecting and storing water
  10. 16. Stage of an insect's life cycle between larvae (grubs) and adults
  11. 19. Rock that comes out of a volcano and hardens in the air