Marble is stone that is generally polished and used in fine building work, furniture, or decorative art. It may be white or colored. It is porous, and easily stained. Marble is etched by acids. Wipe off anything spilled on marble immediately, as you would on a wood surface. Avoid setting beverage glasses directly on marble as they leave rings.
In general, small samples of marble will show "air permeability."
Permeability is a property of a rock volume to allow fluids or gases to pass through them, due to pressure gradient (a higher pressure at the inlet than at the outlet). Porosity and absorbency varies in marble, but we are very aware that fluids can be absorbed, as marble tops are very easy to stain.
Permeability requires that these pores be interconnected, and that pressure gradient is sufficient to push the fluids through the pore openings. So, in construction, where marble tiles are cemented in place, marble may be considered to be an adequate seal. But, a common test of permeability is to pass air through a sample, often under high pressure. Under these conditions, a measurable flow at the outlet indicates permeability.
impermeable (imperious) no liquid can get through, h
impermeable
Plasma membranes are selectively permeable.
permeable
Impermeable rocks cause more rapid run off than permeable rocks. This is because the water can somewhat flow through the permeable rocks, not impermeable ones.
A rock that has high porosity is not permeable if the pores or fractures are not connected. The larger and better shorted the particles are, the more permeable the rock or sediment tends to be. Because of this characteristic composition, clay is essentially impermeable, which means that water cannot flow through it.
Impermeable means water can't get through it. For example, clay is impermeable substance (because water can't seep through it), but chalk is permeable (because water can drip through it slowly) Sometimes it also applies to places which you can't get into, for example, an 'impermeable fortress' would be difficult to get into.
impermeable
the cell wall is fully permeable
if it is permeable yes impermeable no
semi permeable lets some substances through and impermeable lets no substances through
Cells have impermeable, permeable and selectively permeable membranes.
no
what is impermeable
An aquifer forms when groundwater pools between a permeable layer and an impermeable layer.
An aquifer forms when groundwater pools between a permeable layer and an impermeable layer.
Plasma membranes are selectively permeable.
No! it isn't impermeable?
A raincoat is impermeable because it is made with fabric or plastic that is made to repel water.