What Are Porous and Non Porous Rocks?

Answer

A non porous rock is a rock that or which has interlocking grains so that water cannot get into it while a porous rock is like a sponge. Rocks with rounded grains are normally more crumbly and softer than rocks with interlocking grains.
Q&A Related to "What Are Porous and Non Porous Rocks"
A non porous rock is a rock which has interlocking grains so water can't get into it. A porous rock is like a sponge and a non porous rock is like a stone.
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Unlike ordinary concrete, porous concrete contains very little fine aggregate, in the form of sand and small stones. Instead, it contains large percentages of coarse aggregate, including
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It is a waterproof tape.
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