Which term corresponds to the idea that the dependence of two or more people or things on each other?

• A. Labor
• B. Landforms
• C. Integrate evidence
• D. Interdependence

Answer: (C)

Interdependence is the idea that two or more people or things rely on each other to function or succeed. In social studies, this shows up when economies depend on trade and shared resources, or when ecosystems rely on different species to provide food, pollination, or balance. The best fit here is interdependence because it names mutual reliance and cooperation between parts of a system.

Labor describes work performed by people or machines, not the relationship of dependence itself. Landforms are natural features of the Earth's surface, like mountains or plains. Integrate evidence is a skill about combining information from different sources to support a conclusion. Each of these captures something different, while interdependence specifically captures the idea of mutual reliance among parts.