Nature VS nurture

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Across
  1. 1. worry about something continuously
  2. 5. spoiled by something such as a fault or mark
  3. 6. an argument in favour of something
  4. 8. agreement
  5. 9. to create an expression that becomes widely used
  6. 10. a system for organizing people's status
Down
  1. 2. something caused by something else
  2. 3. describing an action that occurs by chance
  3. 4. the attitude of someone who works very hard
  4. 7. used to say something is certain to happen