GEOLOGY

Detailed explanation-1: -The porosity of a rock varies because of the size of the grains in the rock and the shape of the grains. Another factor that affects the porosity of a rock is whether or not there is any material in the rock (or cement) to fill in the gaps between pore spaces and hold the grains together.

Detailed explanation-2: -The porosity of a soil depends on several factors, including (1) packing density, (2) the breadth of the particle size distribution (polydisperse vs. monodisperse), (3) the shape of particles, and (4) cementing.

Detailed explanation-3: -What is a porosity example? Porosity is a calculation of the percentage of empty space within a material. For example, the percentage of empty space within a box of soil or the percentage of empty space within a given rock is what is referred to as porosity.

Detailed explanation-4: -Porosity is the percentage of void space in a rock. Porosity is the percentage of void space in a rock. It is defined as the ratio of the volume of the voids or pore space divided by the total volume. It is written as either a decimal fraction between 0 and 1 or as a percentage.