The correct answer is: a) Out-migration.
Out-migration is the movement of people away from a particular place. It is often caused by factors such as limited economic opportunities, frequent droughts, and political instability. People who out-migrate are often looking for better opportunities in other places.
In-migration is the movement of people into a particular place. It is often caused by factors such as economic opportunities, job availability, and a better quality of life. People who in-migrate are often looking for a better life for themselves and their families.
International migration is the movement of people from one
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