Humans influence carrying capacity by:

• A. Conserving resources and sustainable practices can help.
• B. Increasing birth rates indefinitely will raise carrying capacity.
• C. Eliminating all predators will always increase carrying capacity.
• D. Introducing non-native species with no consequences will increase carrying capacity.

Answer: (A)

Carrying capacity is the largest population an environment can support indefinitely given the resources available and the interactions among organisms. Humans influence carrying capacity through how we use resources, manage land, and protect ecosystems. Conserving resources and adopting sustainable practices helps keep water, food, energy, and habitats available and healthy over time, maintaining or increasing the environment’s ability to support people and other species. Increasing birth rates indefinitely would raise population size temporarily, but it doesn’t create more resources; if demand outpaces supply, shortages and instability follow. Eliminating predators or introducing non-native species disrupts ecological balances and often harms resource availability and system stability, so they do not reliably increase carrying capacity. So conserving resources and sustainable practices is the way humans influence carrying capacity effectively.