In what direction does water flow in the unsaturated zone?
A) horizontally
B) vertically downward
C) it move along the surface of the water table
D) vertically upward

Question

Quizplus · Accepted Answer

In the unsaturated zone (also called the vadose zone), water flows vertically downward due to gravity and permeability of the soil or rock. As it moves through the pores and spaces between grains, it may also move laterally or horizontally to some extent, but the predominant direction is downward. Once it reaches the saturated zone, it may move laterally with the water table or discharge into a stream or other water body.

In What Direction Does Water Flow in the Unsaturated Zone