A Population Pyramid is a graphical representation that shows the distribution of various age groups in a population, typically divided by gender. The pyramid shape illustrates the number of individuals in each age group, with younger ages at the bottom and older ages at the top. This visual tool helps demographers and policymakers understand population trends, such as birth rates and life expectancy. Population pyramids can reveal important information about a country's demographic structure. For example, a wide base indicates a high birth rate, while a narrow top suggests a lower life expectancy. By analyzing these patterns, researchers can make predictions about future population changes and plan for resources and services accordingly.