Thanks for asking this question! Yes, Crohn's disease is genetic but that isn't the whole story. Like with many other diseases, the environment plays a role too. Crohn's disease affects the digestive system (usually the lower half of the small intestine and colon).es, Crohn's disease is genetic but that isn't the whole story. Like with many other diseases, the environment plays a role too. Crohn's disease affects the digestive system (usually the lower half of the small intestine and colon).
Grog (clay) Grog, also known as firesand and chamotte, is a ceramic raw material. It has high percentage of silica and alumina. It can be produced by firing selected fire clays to high temperature before grinding and screening to specific particle sizes. It can also be produced from pitchers.
Blast furnace gas (BFG) is a by-product of blast furnaces that is generated when the iron ore is reduced with coke to metallic iron. It has a very low heating value, about 93 BTU /cubic foot, because it consists of about 60 percent nitrogen, 18-20% carbon dioxide, which are not flammable.