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What is the measurement of a population per unit area?
The
is the measurement of a population per unit area. Overcrowding is an example of

The population density is the measurement of a population per unit of area. Overcrowding is an example of high population density.

Explanation:

Population density is a measure that takes into account the number of inhabitants that a certain area has and its surface, measured in Km2 or Mi2. It is a simple calculation, which is done using the following equation:

Population density = N° people / Surface area

In population dynamics, it serves as a measure to evaluate if a population has enough space for its development.

Overcrowding consists of a number of people occupying a reduced space, which means a greater number of individuals that exceed the space capacity.

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Population density link

satellites are frequently used to make observations of the orbit on earth