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Dec 05, 2011· "Moving from the City to the Country" Making a dirt/soil cement slab at home. Ingredients: 1/2" Portland Cement 3 1/2" Dirt Water Tools Needed: Tamper (10 ...

Fertilizer is a substance added to soil to improve plants'' growth and yield. First used by ancient farmers, fertilizer technology developed significantly as ...

Separating fine gold particles from black sands is one of the biggest challenges that gold prospectors have to deal with. This article will describe a simple and ...
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