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John and Mary work eight hours at a bakery. John can decorate either 10 ice-cream cakes or 4 wedding cakes; Mary can decorate either 8 ice-cream cakes or 2 wedding cakes. According to this scenario
Igneous Rocks
Geological formations that originate from the solidification and cooling of molten rock materials.
Porosity
The measure of empty spaces in a material, indicating its ability to hold fluid.
Permeability
The measure of a material's ability to allow fluids to pass through it, often related to the porosity and texture of the material.
Aquifer
A permeable body of saturated material through which groundwater can flow and which yields significant volumes of water to wells and springs.
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