Solstice, equinox, seasons

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Across
  1. 1. separates the hemishperes
  2. 4. the longest or shortest day of the year
  3. 5. longest solstice
  4. 9. days and nights are equalin length
Down
  1. 2. Two things that cause seasons
  2. 3. means half
  3. 4. shortest solstice
  4. 6. the hemisphere we live in
  5. 7. the shape of the Earth
  6. 8. imaginary line running north to south