Clothing, pumice, and paper are mostly porous.
Clothing, pumice, and paper are mostly porous.
Some basalts can be quite porous, others may be non-porous.
some types of styrofoam are porous but not all are
If something is porous, it generally means that it has holes and is absorbent. Some synonyms for porous include penetrable, spongelike and absorptive.
These are some porous rocks: chalk, limestone, sandstone, pumice, scoria.
There is one called PORCERAX that is porous.
A porous barrier is a barrier against the movement of one type of objects that is not a barrier to the movement of another type of objects. A "real life" example would be a picket fence, which stops motion of objects, such a s adult humans, that are larger than the distance between the pickets but not those of smaller objects such as snakes and insects. However, the most common use of the phrase is in engineering and physical chemistry, specifically in osmosis and reverse osmosis technology, battery design, and other electrochemistry. In these fields, porous barriers have been devised that permit the flow of water but not electrolytes, of cations but not anions, etc.
it is non porous
There are two types porous and non porous. You can also seel porous concrete to make it non porous.
There are two types porous and non porous. You can also seel porous concrete to make it non porous.
glass, plastic, metal. I don't feel like thinking too hard so that is all I will say.
polystyrene along with other porous (objects which have a lot of air in them) such as Styrofoam water, wood and other materials are insulators, not conductors.