Take the Celiac Disease Quiz to learn the causes, symptoms, and treatments for the condition caused by an allergy to gluten, a digestive irritant found in many common foods. Read more: Celiac Disease (Celiac Sprue) Quiz: Test Your Digestive Disease IQ.
Natural disasters fall into three broad groups: 1. Those caused by movements of the Earth. These occur with the minimum amount of warning and include earthquakes, volcanic eruptions and tsunamis. They are difficult to predict and impossible to stop.
Widespread rockfalls also are caused by loosening of rocks as a result of ground shaking. Worldwide, landslides caused by earthquakes kill people and damage structures at higher rates than in the United States. Landslides and Volcanic Activity Landslides due to volcanic activity are some of the most devastating types.