Answer:
Population growth refers to the increase in the number of individuals residing in a particular area over a specific period. This demographic phenomenon is influenced by factors such as birth rates, death rates, immigration, and emigration. Historically, the global population has experienced significant growth, with the world's population reaching approximately 7.9 billion people as of my last knowledge update in September 2021. Rapid population growth can have far-reaching implications for societies, economies, and the environment. While population growth can contribute to economic expansion and cultural diversity, it also poses challenges such as increased demand for resources, strain on infrastructure, and potential environmental degradation. Addressing issues related to population growth often involves implementing sustainable development practices, promoting education and healthcare, and creating policies that support family planning. Understanding and managing population growth are crucial for achieving a balance that ensures the well-being of individuals and the sustainability of the planet.