An administrative district in West Africa has a total population of 450,000 people and a t… — JAMB UTME

An administrative district in West Africa has a total population of $450,000$ people and a total surface area of $3,000\text{ km}^2$ . If $1,000\text{ km}^2$ of the district's land area is arable and used for crop cultivation while the remaining $2,000\text{ km}^2$ is non-arable, what is the physiological population density of this district?

$450\text{ persons per km}^2$ Answer
B
$150\text{ persons per km}^2$
C
$225\text{ persons per km}^2$
D
$0.0022\text{ km}^2\text{ per person}$

Answer

The physiological population density of the district is

450\text{ persons per km}^2

Physiological density is defined as the ratio of total population to the area of arable land. Dividing the total population of

450,000

inhabitants by the

1,000\text{ km}^2

of arable land yields

450\text{ persons per km}^2

Step-by-Step Solution

Identify the given demographic and land area values

Total population =

450,000

; Total land area =

3,000\text{ km}^2

; Arable land area =

1,000\text{ km}^2

Physiological density specifically relates population to arable (cultivable) land.

Apply the physiological density formula

\text{Physiological Density} = \frac{\text{Total Population}}{\text{Arable Land Area}} = \frac{450,000}{1,000\text{ km}^2} = 450\text{ persons per km}^2

Unlike arithmetic density, physiological density evaluates population pressure specifically on agricultural land resources.

Key Concept

Physiological Population Density vs Arithmetic Population Density

Estimated Time:1m 30s

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