Which statement about population pyramids is correct when there is a wide base and a narrow top?

Which statement about population pyramids is correct when there is a wide base and a narrow top?

• A. An equal base and top indicates no young population.
• B. A wide base indicates many young dependents and potential rapid population growth.
• C. A narrow base indicates rapid growth.
• D. A wide top indicates high elderly dependency.

Answer: (B)

A population pyramid shows how a country’s people are distributed across age groups, with wider bars meaning more people in that age range. A shape with a wide base and a narrow top reveals a large number of children and relatively few older people. This points to high birth rates in the past and continuing high fertility, so there are many young people who will enter reproductive age in the near future. As these cohorts grow up and have children of their own, the population has the potential to increase rapidly. In contrast, an equal base and top would imply a more balanced age structure with less rapid growth, a narrow base would indicate fewer young people and slower growth, and a wide top would signal a larger elderly population and aging, which isn’t the pattern described here.

A population pyramid shows how a country’s people are distributed across age groups, with wider bars meaning more people in that age range. A shape with a wide base and a narrow top reveals a large number of children and relatively few older people. This points to high birth rates in the past and continuing high fertility, so there are many young people who will enter reproductive age in the near future. As these cohorts grow up and have children of their own, the population has the potential to increase rapidly.

In contrast, an equal base and top would imply a more balanced age structure with less rapid growth, a narrow base would indicate fewer young people and slower growth, and a wide top would signal a larger elderly population and aging, which isn’t the pattern described here.