GEOLOGY

Detailed explanation-1: -For groundwater to be able to get into a rock with good porosity it must also have good permeability. For a rock to be permeable and for water to move through it, the pore spaces between the grains in the rock must be connected. Permeability is therefore a measure of the ability of water to move through a rock.

Detailed explanation-2: -The actual speed of groundwater flow (v) is given by: where n is the porosity of the rock. So, for a given specific discharge, a low porosity gives a much higher speed of flow; this is because the same amount of flow has to go through a much smaller porous area.

Detailed explanation-3: -High porosity hair is hair that attracts and loses moisture easily. If you have high porosity hair, it means that water, oils, and other types of products can be easily absorbed by your hair, but because your hair is highly porous, it may not be able to retain moisture as well as other types of hair.

Detailed explanation-4: -The combination of water storage (porosity) and flow (permeability) makes a good aquifer-a rock unit or sediment that contains usable groundwater. Well-sorted sediments (i.e., uniform grain size) have higher porosity, because smaller sediment particles do not fill in the spaces between the larger particles.