Population pyramids for a test

What is a population pyramid?

A graphical representation showing the distribution of various age groups in a population.

What does the vertical axis of a pyramid represent?

The vertical axis displays age groups, typically in 5-year intervals.

True or false: Population pyramids only show age and sex.

True, because they primarily depict the age and gender distribution of a population.

Difference between expansive and constrictive pyramids.

Expansive pyramids have a broad base, indicating high birth rates, while constrictive pyramids have a narrow base, indicating low birth rates.

Fill in the blank: A pyramid with a narrow top indicates a __________ population.

Aging population, meaning fewer young people and more elderly.

What does a stable population pyramid look like?

It has a relatively uniform shape, indicating low birth and death rates.

What is a demographic transition model?

A model that describes the transition of a country from high birth and death rates to low birth and death rates.

True or false: Population pyramids can predict future population trends.

True, because the shape of a pyramid can suggest potential future demographic shifts.

What is the purpose of analyzing population pyramids?

To understand the potential social, economic, and political implications of demographic changes.

What does a bulbous middle section indicate?

It indicates a large working-age population, which can affect the economy and social services.

What are dependency ratios?

Ratios that compare the working-age population to the non-working-age population (youth and elderly).

True or false: A population pyramid can show migration patterns.

False, because it primarily shows age and sex distribution, not migration data.