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.
Smog is a type of air pollutant. The word smog was coined in the early 20th century as a portmanteau of the words smoke and fog to refer to smoky fog. The word was then intended to refer to what was sometimes known as pea soup fog, a familiar and serious problem in London from the 19th century to the mid 20th century.