Which one of the following statements is NOT correct? 

Explanation:

Porosity

• Porosity is a measure of the open space or voids within a rock, and it can be influenced by the size and shape of the individual grains making up the rock.
• Irregularly shaped or larger grains may leave more space between them, resulting in higher porosity.
• Porosity can be significantly influenced by rock mechanical processes.
• Mechanical processes like compaction, cementation, and deformation can alter the arrangement of rock grains.
• Porosity of spherical rock grains is higher in the case of cubic packing.

 Additional InformationSpecific Gravity

• Specific gravity is a measure of the density of a substance compared to the density of water.
• In geology and engineering, specific gravity is used to estimate the density of rocks and minerals.
• Knowing the specific gravity of a rock is useful for calculating various properties, including overburden stress, which is the weight of the overlying rock or sediment.