In general, contaminated groundwater will be naturally cleaned faster by circulation through porous and permeable sands than by circulation through fractured crystalline igneous and metamorphic rocks.

Question

Quizplus · Accepted Answer

Porous and permeable sands have greater interconnected pore spaces through which groundwater can flow, allowing for faster mixing and dilution of contaminants. Fractured crystalline igneous and metamorphic rocks, on the other hand, have fewer interconnected spaces and may limit the movement of contaminated groundwater, resulting in slower natural cleanup.

In General, Contaminated Groundwater Will Be Naturally Cleaned Faster by Circulation