Solve the puzzle

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Across
  1. 3. tallest mountain of the world
  2. 5. it comes after rain
  3. 7. caterpillar turn into
  4. 8. u can see it after you sleep
Down
  1. 1. third planet from the Sun.
  2. 2. days in a week
  3. 4. Ship of the Desert
  4. 6. gives us oxygen
  5. 7. feathers