Periodic departure and return of an individual in a population is known as------

Options :
  1. immigration
  2. migration
  3. emigration
  4. mutation

Answer and Explanation :-

Answer: Option 2


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[W]hen someone finds himself quite unjustly attacked and hated on all sides, there is no need for such a person to feel dismayed by misfortune. See how Fortune, who has harmed many a one, is so inconstant, for God, Who opposes all wrong deeds, raises up those in whom hope dwells.
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