Which is described by water that flows downhill? (1 point)

Responses

groundwater
groundwater

vapor.
vapor.

saturation
saturation

runoff

runoff

The correct answer is runoff.

The correct answer is runoff. Runoff refers to the water that flows downhill over the Earth's surface, usually from higher to lower ground. It occurs when precipitation, such as rain or melted snow, can't be absorbed by the ground or evaporated back into the atmosphere. Instead, it flows over the surface, collecting in streams, rivers, and eventually reaching the ocean or other bodies of water.

To arrive at this answer, you could have eliminated the other options:

1. Groundwater: Groundwater is water that is stored underground in soil or porous rock layers. It does not flow downhill like runoff.
2. Vapor: Vapor refers to water in its gaseous form. It does not flow downhill but rather rises into the atmosphere.
3. Saturation: Saturation refers to a state where a substance, in this case, water, has absorbed or dissolved as much of another substance, like a solute, as it can. It does not involve the flow of water downhill.

Therefore, by the process of elimination, you can determine that the correct answer is runoff.