Alias-type crossword

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Across
  1. 3. much used metal
  2. 6. Ulla-Kaarina's husband Petri has huge...
  3. 7. You should pay these
  4. 8. you hope that this is bright
  5. 9. cars have this
  6. 11. if you do this crossword you are...
  7. 12. the ocean is full of this
Down
  1. 1. if you don't do this you die
  2. 2. a place with no gravity
  3. 4. Turkey is in this continent
  4. 5. huge weight
  5. 10. about 4,5 litres