Which term corresponds to elements that produce the water cycle?

Which term corresponds to elements that produce the water cycle?

• A. Inputs
• B. Outputs
• C. Stores
• D. Transfers

Answer: (A)

The water cycle in a drainage basin is driven by inputs—water that enters the system from outside, such as rainfall, snowmelt, and inflow from adjacent areas. These inputs supply the water that will be stored (in soil, rivers, and groundwater) and moved around by transfers (infiltration, runoff, and groundwater flow). Outputs remove water from the system (evaporation, discharge), while stores and transfers describe where the water is held and how it moves within the cycle. Because these incoming sources initiate and sustain the cycle, the term that best describes the elements producing the water cycle is inputs.

The water cycle in a drainage basin is driven by inputs—water that enters the system from outside, such as rainfall, snowmelt, and inflow from adjacent areas. These inputs supply the water that will be stored (in soil, rivers, and groundwater) and moved around by transfers (infiltration, runoff, and groundwater flow). Outputs remove water from the system (evaporation, discharge), while stores and transfers describe where the water is held and how it moves within the cycle. Because these incoming sources initiate and sustain the cycle, the term that best describes the elements producing the water cycle is inputs.