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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?


To: Brumar89 who wrote (844799)3/24/2015 4:13:01 PM
From: Wharf Rat  Read Replies (1) | Respond to of 1573740
 
Silicosis is why they call Black Lung "anthrosilicosis", and anthrosilicosis is why they call it Killer Coal.



To: Brumar89 who wrote (844799)3/24/2015 9:15:55 PM
From: J_F_Shepard  Read Replies (1) | Respond to of 1573740
 
Silica is simply SiO2, silicon dioxide........among the most common substances on the planet........ie the beaches....