Question

What is the population density? ​

Answer 1

Answer:

Population density is a measurement of population per unit area, or exceptionally unit volume; it is a quantity of type number density. It is frequently applied to living organisms, most of the time to humans. It is a key geographical term. 

Answer 2

• Population density is the number of individuals per unit area (volume) of environment at a given time.
• The formula D=N/S is applied to know the density of population, where D is density, N is the number of individuals and S is the number units of space.
• Density changes by alternation of four basic factors i.e. natality, morality, emigration and immigration$.$