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, of course! Smog is a type of air pollution caused by tiny particles in the air. The word comes from a mixture of the words smoke and fog and was first used to describe the hazy mixture of smoke and sulfur dioxide produced by the burning of large amounts of coal in London in the early 1900s.