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Analogy - Porosity is to holes as permeability is to _
A. Cracks
B. Soild rock
C. Filled-in pores
D. Closed pores


Sagot :

Porosity is the amount of empty space in a rock or other earth material (like sand) - in other words, it's how much water a material can hold. 

Permeability refers to how well water flows through a material - the flow is controlled by how large the pores are and how well connected the pores are in a given object.
Therefore, there these are two primary factors that limit the movement and the amount of water (or other fluids) retained  in rocks/sedimentary materials.