For a science, you must build a model of an aquiefier. What material would be best to use for where the water will accumulate?

a. clay

b. granite

c. gravel

d. bedrock

Answer is C.

Water-holding capacity is controlled primarily by soil texture, and amount of organic matter. Soils with small particles containing clay have a larger surface are than those larger sand particles, and a large surface area that allows to hold more water.