Plasticity index = Liquid Limit ? Plastic Limit.It shows the moisture range over which soil behaves plastically, useful for classifying fine-grained soils.
36.
Which factor most affects the permeability of soil?
Grain shape directly influences how easily water flows between soil particles.Angular grains interlock and reduce flow, while rounded grains allow easier passage.
37.
Rocks with interlocking mineral crystals typically have:
Poisson's ratio is the ratio of lateral strain to axial strain.For rocks, it generally falls between 0.2 and 0.4, depending on mineralogy and porosity.
