GEOLOGY

Detailed explanation-1: -Rocks with pores are said to be porous And there are rocks which have CONNECTED pores. Since they are connected, they let water pass between them and are called permeable rocks or pervious rocks.

Detailed explanation-2: -Sandstone is an example of porous rocks. The rocks which have connected pores and allow water to pass between them. This type of rocks are called permeable rocks or pervious rocks.

Detailed explanation-3: -Permeability is a measure of the ease of flow of a fluid through a porous solid. A rock may be extremely porous, but if the pores are not connected, it will have no permeability.

Detailed explanation-4: -Permeability is a measure of how interconnected the individual pore spaces are in a rock or sediment. A sandstone is typically porous and permeable. Shales are porous but have a lower permeability because the finer grain size creates smaller pore spaces.

Detailed explanation-5: -Porous rock contains empty space in which fluids, such as compressed air, can be stored. Porosity is defined as the percentage of a rock that is empty and can be used for storage. A porosity of >10% is needed for CAES (sandstone, shale, and limestone are examples of such rocks).