Carrying capacity is the maximum population size the environment can sustain indefinitely; overshoot can lead to resource depletion and a crash. Which statement best reflects this?

• A. It defines the maximum sustainable population.
• B. It means resources never run out.
• C. It increases with unlimited technology improvements.
• D. It applies only to animal populations.

Answer: (C)

Carrying capacity is not a fixed number. It’s the level at which resources, space, and environmental conditions can sustainably support a population, and that level can rise as technology and management improve our ability to access and use resources. So the statement that it increases with unlimited technology improvements best reflects this dynamic: as technology advances—boosting food production, water supply, energy efficiency, and waste processing—the environment can support a larger population without crashing. Of course, in reality there are limits and trade-offs, but the core idea is that carrying capacity can grow with technology. The other options are less accurate because carrying capacity isn’t necessarily a fixed maximum, resources can still be exhausted if demand outpaces supply, and the concept applies to all populations, not just animals.