Final answer:
The shape of a country's population pyramid tells a story about the history of its population growth. High-growth countries have a pyramid that is narrow at the top and wide at the bottom, while slow-growth countries have more rectangular population pyramids.
Step-by-step explanation:
The shape of a country's population pyramid tells a story about the history of its population growth. A high-growth-rate country has a pyramid that is narrow at the top and wide at the bottom, indicating rapid growth with more children being born each year. Slow-growth countries have a population pyramid that is more rectangular in shape, indicating a stable population with similar numbers of individuals across age groups. Negative growth or zero population growth countries have a population pyramid that may resemble an inverted pyramid or hourglass shape, indicating a decline in population size. Negative growth or zero population growth countries have an inverted pyramid or hourglass shape.