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.
http://wiki.answers.com/Q/What_is_non_porous_rock
A thing that is porous is having pores, and porosity is the condition or
http://www.chacha.com/question/how-can-a-rock-be-p...
1. Remove any items from the kitchen sink and rinse it out with warm water. 2. Fill a bowl or container with 1 cup of water. Add 1 tsp. of mild dish detergent or all-purpose cleaner
http://www.ehow.com/how_8204578_clean-sink-thats-n...
if cracks form in the rock, then water can pass through. one way of cracks forming in the rock is to have pressure removed from on top of the rock, the rock will expand and from cracks
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