Respuesta :

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.

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