Water moving beneath the earth's surface toward rivers and oceans is called what?

Water moving beneath the earth's surface toward rivers and oceans is called what?

• A. Interception
• B. Groundwater Flow
• C. Infiltration
• D. Overland Flow

Answer: (B)

Groundwater flow is the movement of water beneath the earth's surface toward rivers and oceans. After rainfall infiltrates the soil, some water percolates down to the saturated zone and moves through the pore spaces in soil and rock. This movement is driven by gravity and the hydraulic gradient, and it tends to be slow, sending water toward discharge areas like rivers, lakes, springs, or wells. This subsurface flow forms the baseflow that sustains streams between rain events. It contrasts with interception (water caught by vegetation), infiltration (water entering the soil), and overland flow (surface runoff). Groundwater flow explains how water travels underground to feed surface water bodies.

Groundwater flow is the movement of water beneath the earth's surface toward rivers and oceans. After rainfall infiltrates the soil, some water percolates down to the saturated zone and moves through the pore spaces in soil and rock. This movement is driven by gravity and the hydraulic gradient, and it tends to be slow, sending water toward discharge areas like rivers, lakes, springs, or wells. This subsurface flow forms the baseflow that sustains streams between rain events. It contrasts with interception (water caught by vegetation), infiltration (water entering the soil), and overland flow (surface runoff). Groundwater flow explains how water travels underground to feed surface water bodies.