anti cigarette ads need to do more research instead of just throwing out facts that are off putting to the uneducated masses. Urea serves an important role in the metabolism of nitrogen-containing compounds by animals and is the main nitrogen-containing substance in the urine of mammals. It is a colorless, odorless solid, highly soluble in water and practically non-toxic. It is also found in the blood of every mammal and is urinated out.
Posted on: Tue, 11 Jun 2013 03:48:53 +0000
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