Linked from
The 71 pages that link to Porosity, each with the reason it gives.
PumiceNarrower topic: Pumice’s high porosity accounts for its low bulk density.
Pore pressureNarrower topic: Pore volume provides the spaces in which pressurized fluid resides.
Vadose zoneNarrower topic: Pore space provides storage for both air and water in the zone.
Pore waterNarrower topic: It measures the space available to hold pore water.