Question

an architect is building an underground storage of gasoline for a new gas station. to keep the gasoline from contaminating nearby groundwater sources, what kind of material should the architect use for the underground storage container? an impervious material thick soil sand gravel

Explanation:

Impervious materials prevent fluid passage, safeguarding groundwater from gasoline contamination. Other options like thick soil, sand, and gravel are permeable and won't offer sufficient protection.

Answer:

an impervious material