Answer:
Sand
Explanation:
Clay usually acts as an aquitard, impeding the flow of water. Gravel and sand are both porous and permeable, making them good aquifer materials. Sand has the highest permeability.
Answer:
sand
Explanation:
Permeability in sand is high. It takes only two minutes to remove 40 inches of water. Actually, in some instances this level of permeability is too high.
