Groundwater ____________.
A)does not affect the porosity of the rock and sediment through which it flows
B)uniformly increases porosity due to dissolution of grains
C)uniformly decreases porosity due to deposition of minerals into pores
D)may increase or decrease porosity through dissolution or deposition

Question

Quizplus · Accepted Answer

Groundwater can both dissolve minerals and deposit minerals, which can lead to changes in the porosity of the rock and sediment through which it flows. Therefore, groundwater may increase or decrease porosity through dissolution or deposition, making choice D the best answer.