What is a group of people called living in the same area, who are considered as a unit or having particular characteristics in common?

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E6 Applied Sociology for Nurses TK Indrani pp. 54-56, 116-118
Practise the full AIIMS Raipur NO - 2019 (Shift-2)
Attempt every question from this paper in a timed mock, then review the full solution for each one.