What statement describes why natural population cannot keep growing exponentially?

Natural populations cannot keep growing exponentially due to limiting factors such as resources, space, and environmental conditions. As populations increase, they encounter competition for food, water, and living space, which leads to increased mortality rates and reduced birth rates. Additionally, factors like disease and predation also play a role in regulating population size, ultimately leading to a balance known as the carrying capacity of the environment. This balance prevents unchecked exponential growth over time.