GEOLOGY

EARTH SCIENCE

GROUNDWATER

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If porosity is low then permeability is ____
A
low
B
high
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Permeability refers to how connected pore spaces are to one another. If the material has high permeability than pore spaces are connected to one another allowing water to flow from one to another, however, if there is low permeability then the pore spaces are isolated and water is trapped within them.

Detailed explanation-2: -Permeability is a measure of the degree to which the pore spaces are interconnected, and the size of the interconnections. Low porosity usually results in low permeability, but high porosity does not necessarily imply high permeability.

Detailed explanation-3: -Mathematically, it is the open space in a rock divided by the total rock volume (solid and space). Permeability is a measure of the ease of flow of a fluid through a porous solid. A rock may be extremely porous, but if the pores are not connected, it will have no permeability.

Detailed explanation-4: -Generally, the greater the porosity, the greater the permeability. Both of these factors are important to consider when determining how much groundwater is stored in our underground layers.

Detailed explanation-5: -Porosity and Permeability are inversely associated, so if a soil has a larger proportion of Porosity, it will have a lower percentage of Permeability. Complete answer: The ability of a rock to hold a fluid is measured by its porosity.

There is 1 question to complete.