The flow of groundwater depends on
A)porosity only.
B)permeability only.
C)porosity and permeability.
D)hydraulic gradient,and hydraulic conductivity.

Question

Quizplus · Accepted Answer

The flow of groundwater depends on hydraulic gradient, which is the slope of the water table, and hydraulic conductivity, which is a measure of how easily water can flow through the soil or rock. Porosity and permeability also affect groundwater flow, but they are not the only factors. Porosity is the amount of empty space between soil or rock particles, while permeability is how easily water can flow through those spaces. However, even if a material has high porosity, it may not allow for the flow of water if it lacks connected pore spaces or if those spaces are too small. Similarly, materials that are highly permeable may still not allow for the flow of water if there is no hydraulic gradient to drive the flow. Therefore, the best answer is D, as both hydraulic gradient and hydraulic conductivity are required to determine the flow of groundwater.

The Flow of Groundwater Depends on