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Answer:
An Urban settlement is a concentrated settlement that is part of an urban area. It is an area with high density of human-created structures.
Explanation:
An urban settlement is where displaced populations settle within an urban agglomeration such as a town or city. A master plan usually divides towns or cities into zones regulated by norms based on specific sectors such as housing, hygiene, habitat, and environment.
Family reunification is a recognized reason for immigration in many countries because of the presence of one or more family members in a certain country, therefore, enables the rest of the divided family or only specific members of the family to immigrate to that country as well.
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D. When a natural disaster strikes, FEMA is there to assist the public. An answer that is not there, but one that helps is the red cross, although they are not federal.