Population development refers to the changes in the size, structure, and distribution of a population over time. It is influenced by factors such as birth rates, death rates, and migration patterns. Understanding population development helps governments and organizations plan for resources, healthcare, and education. Key concepts in population development include demography, which studies population statistics, and urbanization, the movement of people from rural to urban areas. These trends can impact economic growth, social services, and environmental sustainability, making it essential for policymakers to address the challenges and opportunities that arise from population changes.