What term means water which runs over the ground into rivers?

What term means water which runs over the ground into rivers?

• A. Rock
• B. Sewage
• C. Run-off
• D. Sanitation

Answer: (C)

Runoff, specifically surface runoff, is water from rain that doesn’t soak into the soil and instead flows over the land into streams and rivers. It happens when rainfall is heavy, the ground is already saturated, or the surface is impermeable, so infiltration is limited. As this water travels, it can erode soil, transport nutrients and pollutants, and quickly raise river levels, which is why managing runoff is important for flood control and water quality. This term isn’t about solid rock, wastewater, or waste-management systems, which is why runoff is the right description for water moving over the ground into rivers.

Runoff, specifically surface runoff, is water from rain that doesn’t soak into the soil and instead flows over the land into streams and rivers. It happens when rainfall is heavy, the ground is already saturated, or the surface is impermeable, so infiltration is limited. As this water travels, it can erode soil, transport nutrients and pollutants, and quickly raise river levels, which is why managing runoff is important for flood control and water quality. This term isn’t about solid rock, wastewater, or waste-management systems, which is why runoff is the right description for water moving over the ground into rivers.