Random knowledge

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Across
  1. 2. A tool that shows direction
  2. 4. The gathering of crops
  3. 8. Ancient triangular structure in Egypt
  4. 9. A mark left by a foot
  5. 10. Something difficult to explain or understand
Down
  1. 1. When the sun or moon is temporarily hidden
  2. 3. A huge system of stars and planets
  3. 5. A mountain that can erupt
  4. 6. Speaking very quietly
  5. 7. A long trip or adventure