Question
Wed February 27, 2013 By:
 

What is leaching?

Expert Reply
Wed February 27, 2013
Leaching refers to the removal of soluble material from a substance, such as soil or rock, through the percolation of water. Organic matter is typically removed from a soil horizon and soluble metals or salts from a rock by leaching. Bioleaching also refers to removal of valuable metals form ores by microbial action.
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