Population structure：练习题

In a standard population pyramid, which demographic information is typically plotted on the vertical axis?

Study the following data for a specific country:

Age Group Data:
- Population aged 0–14: \(35\%\)
- Population aged 15–64: \(60\%\)
- Population aged 65+: \(5\%\)

What is the dependency ratio for this country? Round your answer to the nearest whole number.

Which of the following describes the most likely population structure of a high-income country (HIC), such as Japan or Germany, in terms of its population pyramid shape?

A population pyramid for a specific country shows a distinct bulge in the bars representing males aged \(20\) to \(40\), but the bars for females in the same age groups remain narrow. What is the most likely reason for this population structure?

Study the following demographic data for a country:

Birth Rate: \(42\) per \(1000\)
Death Rate: \(38\) per \(1000\)
Life Expectancy: \(45\) years

What would the shape of this country's population pyramid most likely be?

State the two age groups that are usually classified as the dependent population in a population pyramid.

Analyse the economic challenges a government faces when a population pyramid becomes 'top-heavy', specifically addressing the impact on the dependency ratio and tax revenue.

Identify two pieces of information shown on a population pyramid that allow geographers to analyze the structure of a country’s population.

(a) Identify the three main age groups used to divide a population in an age/sex pyramid.
(b) Briefly describe the shape of a population pyramid for a country with a high birth rate and a high death rate.
(c) Define the term dependency ratio.

(a) Describe what a narrow base on a population pyramid indicates about the population's birth rate.
(b) Identify two economic problems that a government might face when a large proportion of its population is aged over 65.