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Porosity is the fraction of material occupied by empty
spaces. It can be expressed as a percent or a decimal.
Assume that the porosity of a sample of sand and a
sample of gravel is the same: 30 percent (0.30).
Determine the porosity of a mixture of the sand and
gravel, assuming that the sand fills the spaces between
the gravel.
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Porosity is the fraction of material occupied by empty
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