The number of living organisms that a region can support without environmental degradation is called what?

• A. Maximum Sustainable Population
• B. Population Limit
• C. Ecological Capacity
• D. Carrying Capacity

Answer: (D)

Carrying capacity is the number of living organisms an environment can support over time without depleting resources or causing lasting environmental damage. It hinges on the available food, water, shelter, space, and the ecosystem’s ability to process waste. When a population stays at or below this level, resources meet the needs of the organisms and the habitat remains healthy. If the population grows beyond carrying capacity, resources become scarce, competition increases, and the environment can degrade, leading to declines in the population or long-term harm to the habitat. This capacity isn’t fixed; it can change as resources or technology change. Other terms like maximum sustainable population or population limit are less precise, whereas carrying capacity directly describes the sustainable upper bound set by the environment.