GEOLOGY

Detailed explanation-1: -Impermeable and/or non-porous materials include clay, shale, non-fractured igneous and metamorphic rocks. Porous/permeable layers are called aquifers; impermeable layers called aquicludes.

Detailed explanation-2: -: not permitting passage (as of a fluid) through its substance. broadly : impervious. impermeability.

Detailed explanation-3: -Impermeability is defined as the property of a material that it cannot be pervaded by water or other liquids. It is represented with permeability coefficient K which reflects the flow rate of water in the material.

Detailed explanation-4: -Water stops passing through rocks underground when it reaches an impermeable layer. Water stops at the most porous rock layer.