Why do people move to new places?

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Across
  1. 3. conflicts between countries and people.
  2. 6. a happy moment when man and woman become husband and wife.
  3. 7. when there is no harm, threat, and risk.
  4. 9. symbols of countries that has many colors.
  5. 10. an action, movement, or sound that gives information.
  6. 12. the opposite of heavy.
Down
  1. 1. when things are shining and much light.
  2. 2. something normal and usual.
  3. 4. to show.
  4. 5. easy to be seen.
  5. 8. the possibility of suffering from harm and injury.
  6. 11. things are expensive and elegant.