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Water passes through clay slower because clay has greater density than regular dirt so it is a lot more compact.
These liners prevent the contamination of groundwater
I would think clay because it has more density water would go right through sand :)
food
This density must be determined experimentally.
Density
The density of solid clay bricks is around 2000 kg/m³
Density = mass/volume = 22/10 = 2.2 grams per cm^3.
If it's not cooked it has the same density.
Clay
relative density and gravity
Density :D Kriselda Diaz!