| http://www.w3.org/ns/prov#value | - Hot sauce is around 4; vinegar is 3.) As he researched acid mine drainage ??? the source of pollution in Potos?? ??? he learned that the rock in the mountains of Bolivia (and in many U.S. mining regions) is full of naturally occurring lead, cadmium, arsenic, and other heavy metals that are harmful to human health.
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