Crossword3

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Across
  1. 1. High, steep landform.
  2. 3. Insect with long body and wings.
  3. 8. Device to slow free fall.
  4. 9. Gas essential for breathing.
  5. 12. Green summer squash.
  6. 13. Reflex when tired or bored.
  7. 15. Short test.
  8. 16. Newly created device or process.
  9. 17. Device for heating.
  10. 18. Plant with long, trailing stems.
  11. 21. Large marine mammal with tusks.
  12. 23. Bag carried on the back.
  13. 25. Fermented dairy product.
  14. 28. Noble gas element.
  15. 29. Single-story house.
  16. 30. Object flown in the wind.
Down
  1. 2. Small lump of gold or other precious material.
  2. 4. Complex maze.
  3. 5. Structure made from sand.
  4. 6. Place where plants are grown.
  5. 7. Line where earth and sky meet.
  6. 10. Fastener for clothes.
  7. 11. Distinctive clothing for a group.
  8. 14. Nut from an oak tree.
  9. 19. Celestial event where one body obscures another.
  10. 20. Large flowing watercourse.
  11. 22. Deep valley with steep sides.
  12. 24. White or gray mass in the sky.
  13. 26. Loud noise during a storm.
  14. 27. Puzzle with pieces that fit together.